TAKATA Masami
| Faculty Division of Human Life and Environmental Sciences Research Group of Information and Communication Technology for Life | Associate Professor |
Last Updated :2025/04/27
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Name (Japanese)
TakataName (Kana)
Masami
Research History
Education
Teaching Experience
■Ⅱ．研究活動実績
Published Papers
- Refereed, Advances in Parallel & Distributed Processing, and Applications, Application of Deep Metric Learning to Early-modern Japanese Printed Character Recognition, Norie Koiso; Yuki Takemoto; Sayaka Iida; Yu Ishikawa; Masami Takata; Kazuki Joe, 2052, International conference proceedings
- Refereed, Advances in Parallel & Distributed Processing, and Applications, Improved Fitness Functions for 3D Packing Problem, Shigeka Nakajima; Masami Takata, 2052, International conference proceedings
- Refereed, Advances in Parallel & Distributed Processing, and Applications, Proposal on Scheduling Method for Sightseeing with Unlimited Ride Tickets, Shiori Higano; Reina Isono; Masami Takata, 2052, International conference proceedings
- Refereed, Advances in Parallel & Distributed Processing, and Applications, On a Fast Computation of the Condition L-curve in the LSMR Method for Solving Ill-conditioned Problems using the DQDS Method, Itsuki Kuboi; Rika Tanaka; Shin-ya Ozawa; Yohsuke Hosoda; Masami Takata; Kinji Kimura; Yoshimasa Nakamura, 2052, International conference proceedings
- Refereed, Advances in Parallel & Distributed Processing, and Applications, Translating Early-modern Written Style into Current Colloquial Style in Hoji Shinbun, Honoka Nishikawa; Yuki Takemoto; Sayaka Iida; Yu Ishikawa; Masami Takata; Kaoru Ueda; Kazuki Joe, 2051, International conference proceedings
- Refereed, Springer Nature - Advances in Parallel & Distributed Processing, and Applications, Generating an Estimated Font Set for Early-Modern Japanese Printed Character Recognition, Yuki Takemoto; Yu Ishikawa; Masami Takata; Kazuki Joe, 2051, International conference proceedings
- Refereed, Springer Nature - Advances in Parallel & Distributed Processing, and Applications, Implementation of Singular Value Decomposition for Complex Matrices Using the Two-sided Jacobi Method, Takahiro Miyamae; Masami Takata; Kinji Kimura; Yoshimasa Nakamura, 2051, International conference proceedings
- Refereed, Springer Nature - Advances in Parallel & Distributed Processing, and Applications, Proposal of an Essential Oil Blending Method using Q-learning, Kyoka Nakano; Masami Takata, 2051, International conference proceedings
- The Journal of Supercomputing, Springer Science and Business Media LLC, High-speed computation method for condition numbers in the range restricted general minimum residual method, Miho Chiyonobu; Masami Takata; Kinji Kimura; Yoshimasa Nakamura, 07 Apr. 2025, 81, 5, Scientific journal, 10.1007/s11227-024-06868-2
- Refereed, Communications in Computer and Information Science, Springer Nature Switzerland, Fast Computation Method for Stopping Condition of Range Restricted GMRES Method, Miho Chiyonobu; Masami Takata; Kinji Kimura; Yoshimasa Nakamura, 26 Mar. 2025, 306, 317, In book, 10.1007/978-3-031-85638-9_23
- Refereed, Communications in Computer and Information Science, Springer Nature Switzerland, Improved Early–Modern Japanese Printed Character Recognition Rate with Generated Characters, Norie Koiso; Yuki Takemoto; Yu Ishikawa; Masami Takata, 26 Mar. 2025, 167, 181, In book, 10.1007/978-3-031-85638-9_13
- Refereed, Japan Journal of Industrial and Applied Mathematics, Springer Science and Business Media LLC, Convergence analysis of the generalized Newton shift for computing singular values with the dqds algorithm, Kinji Kimura; Yusaku Yamamoto; Yusuke Hirota; Masami Takata; Takumi Yamashita; Yoshimasa Nakamura, Abstract
The generalized Newton shift is a generalization of the Newton shift for computing the singular values of a bidiagonal matrix with the dqds or mdLVs algorithm and is defined as $$\left( \textrm{Tr}\left( \left( B^{(n)}\right) ^{\top } B^{(n)}\right) ^{-p}\right) ^{-1/p}$$ , where $$B^{(n)}$$ is the bidiagonal matrix at the n-th iteration and p is some positive integer. This quantity can be computed in O(pm) work, where m is the order of the matrix, and another $$O(p^2 m)$$ subtraction-free algorithm is also available for higher accuracy. We analyze the asymptotic convergence property of the dqds algorithm with the generalized Newton shift and show that its order of convergence is $$p+1-\epsilon $$ for any $$\epsilon >0$$ . This result is confirmed by numerical experiments. Since the generalized Newton shift can achieve arbitrarily high order of convergence, it should be useful as a building block for constructing an efficient shifting strategy for the dqds algorithm., 03 Mar. 2025, Scientific journal, 10.1007/s13160-025-00689-3 - Refereed, The Journal of Supercomputing, Springer Science and Business Media LLC, Improvement of recognition rate using data augmentation with blurred images, Shiori Ishikawa; Miho Chiyonobu; Sayaka Iida; Masami Takata, 07 Feb. 2024, 80, 9, 12154, 12165, Scientific journal, 10.1007/s11227-024-05901-8
- Refereed, The Journal of Supercomputing, Springer Science and Business Media LLC, Singular value decomposition for complex matrices using two-sided Jacobi method, Miho Chiyonobu; Takahiro Miyamae; Masami Takata; Jun Harayama; Kinji Kimura; Yoshimasa Nakamura, 01 Feb. 2024, 80, 8, 11719, 11740, Scientific journal, 10.1007/s11227-024-05903-6
- Refereed, 2023 Congress in Computer Science, Computer Engineering, & Applied Computing (CSCE), IEEE, Data Augmentation Method for Improving Blurred Image Recognition Rate, Shiori Ishikawa; Miho Chiyonobu; Sayaka Iida; Masami Takata, 24 Jul. 2023, 2226, 2229, International conference proceedings, 10.1109/csce60160.2023.00363
- Refereed, 2023 Congress in Computer Science, Computer Engineering, & Applied Computing (CSCE), IEEE, Iterative Censoring and Highly Efficient Machine Learning with Condition Number in LSMR Method, Miho Chiyonobu; Itsuki Kuboi; Rika Tanaka; Shinya Ozawa; Yohsuke Hosoda; Masami Takata; Kinji Kimura; Yoshimasa Nakamura, 24 Jul. 2023, 2190, 2197, International conference proceedings, 10.1109/csce60160.2023.00358
- Refereed, 2023 Congress in Computer Science, Computer Engineering, & Applied Computing (CSCE), IEEE, Proposed Preprocessing for High–Performance Complex Singular Value Decomposition, Miho Chiyonobu; Masami Takata; Jun Harayama; Kinji Kimura; Yoshimasa Nakamura, 24 Jul. 2023, 2183, 2189, International conference proceedings, 10.1109/csce60160.2023.00357
- Refereed, Method of Acquiring Low-frequency Character Types for Specific Early-Modern Japanese Printed Book Publishers, Yuki Takemoto; Yu Ishikawa; Masami Takata; Kazuki Joe, 26 Jul. 2022, 15, 3, 71, 89, Scientific journal
- Refereed, On a fast computation of the condition L-curve in the LSMR method for solving ill-conditioned problems using the DQDS method, Jul. 2022, 2022-MPS-139, 3, 1, 4, Symposium
- Refereed, Proposal on Scheduling Method for Sightseeing with Unlimited Ride Tickets, Shiori Higano; Reina Isono; Masami Takata, Jul. 2022, 2022-MPS-139, 4, 1, 4, Symposium
- Refereed, Application of Deep Metric Learning to Early-modern Japanese Printed Character Recognition, Norie Koiso; Yuki Takemoto; Sayaka Iida; Yu Ishikawa; Masami Takata; Kazuki Joe, Jul. 2022, 2022-MPS-139, 10, 1, 4, Symposium
- Refereed, Jul. 2022, 2022-MPS-139, 6, 1, 4, Symposium
- Refereed, IPSJ Transactions on Mathematical Modeling and Its Applications, Accelerating the Numerical Computation of Positive Roots of Polynomials Using Suitable Combination of Lower Bounds, Masami Takata; Takuto Akiyama; Sho Araki; Hiroyuki Ishigami; Kinji Kimura; Yoshimasa Nakamura, Jan. 2022, 15, 1, 18, 30, Scientific journal
- Refereed, Advances in Parallel & Distributed Processing, and Applications, Improvement of Island GA using Multiple Fitness Functions, Shigeka Nakajima; Masami Takata, Nov. 2021, 725, 736, International conference proceedings
- Refereed, Advances in Parallel & Distributed Processing, and Applications, On an Implementation of the One-Sided Jacobi Method with High Accuracy, Masami Takata; Sho Araki; Kinji Kimura; Yoshimasa Nakamura, Nov. 2021, 713, 724, International conference proceedings
- Refereed, Advances in Parallel & Distributed Processing, and Applications, Application of the Orthogonal QD Algorithm with Shift to Singular Value Decomposition for Large Sparse Matrices, Hiroki Tanaka; Taiki Kimura; Tetsuaki Matsunawa; Shoji Mimotogi; Masami Takata; Kinji Kimura; Yoshimasa Nakamura, Nov. 2021, 697, 712, International conference proceedings
- Refereed, Advances in Parallel & Distributed Processing, and Applications, Crawling Low Appearance Frequency Characters Images for Early-Modern Japanese Printed Character Recognition, Nanami Fujisaki; Yu Ishikawa; Masami Takata; Kazuki Joe, Nov. 2021, 683, 695, International conference proceedings
- Refereed, IPSJ Transactions on Mathematical Modeling and Its Applications, On an Implementation of the One-Sided Jacobi Method With High Accuracy, Masami Takata; Sho Araki; Takahiro Miyamae; Kinji Kimura; Yoshimasa Nakamura, Aug. 2021, 14, 3, 68, 75, Scientific journal
- Refereed, Jul. 2021, 2021-MPS-134, 13, 1, 4, Symposium
- Refereed, Jul. 2021, 2021-MPS-134, 8, 1, 4, Symposium
- Refereed, Jul. 2021, 2021-MPS-134, 7, 1, 3, Symposium
- Refereed, IPSJ Transactions on Mathematical Modeling and Its Applications, On an Implementation of the Two-Sided Jacobi Method, Sho Araki; Masana Aoki; Masami Takata; Kinji Kimura; Yoshimasa Nakamura, Jan. 2021, 14, 1, 12, 20, Scientific journal
- Refereed, Jul. 2020, 2020-MPS-129, 5, 1, 4
- Refereed, Jul. 2020, 2020-MPS-129, 4, 1, 4
- Refereed, Jul. 2020, 2020-MPS-129, 3, 1, 4
- Refereed, Jul. 2020, 2020-MPS-129, 2, 1, 4
- Refereed, In Proceedings of 2019 International Conference on Parallel and Distributed Processing Techniques and Applications, Layout Analysis using Semantic Segmentation for Imperial Meeting Minutes, Sayaka Iida; Yuki Takemoto; Yu Ishikawa; Masami Takata; Kazuki Joe, Jul. 2019, 135, 141
- Refereed, In Proceedings of 2019 International Conference on Parallel and Distributed Processing Techniques and Applications, A Discrete Three-wave System of Kahan-Hirota-Kimura Type and the QRT Mapping, Yuko Takae; Masami Takata; Kinji Kimura; Yoshimasa Nakamura, Jul. 2019, 142, 148
- Refereed, In Proceedings of 2019 International Conference on Parallel and Distributed Processing Techniques and Applications, Improvement of the Thick-Restart Lanczos Method in Single Precision Floating Point Arithmetic using Givens Rotations, Masana Aoki; Masami Takata; Kinji Kimura; Yoshimasa Nakamura, Jul. 2019, 149, 155
- Refereed, In Proceedings of 2019 International Conference on Parallel and Distributed Processing Techniques and Applications, On an Implementation of Two-Sided Jacobi Method, Sho Araki; Masami Takata; Kinji Kimura; Yoshimasa Nakamura, Jul. 2019, 156, 162
- Refereed, In Proceedings of 2019 International Conference on Parallel and Distributed Processing Techniques and Applications, Structure of Neural Network Automatically Generating Fonts for Early-Modern Japanese Printed Books, Yuki Takemoto; Yu Ishikawa; Masami Takata; Kazuki Joe, Jul. 2019, 182, 188
- Refereed, In Proceedings of 2019 International Conference on Parallel and Distributed Processing Techniques and Applications, Applying CNNs to Early-Modern Printed Japanese Character Recognition, Suzuka Yasunami; Norie Koiso; Yuki Takemoto; Yu Ishikawa; Masami Takata; Kazuki Joe, Jul. 2019, 189, 195, International conference proceedings
- Refereed, IPSJ Transactions on Mathematical Modeling and Its Applications, Improvement of the Augmented Implicitly Restarted Lanczos Bidiagonalization Method in Single Precision Floating Point Arithmetic, Yuya Ishida; Masami Takata; Kinji Kimura; Yoshimasa Nakamura, Dec. 2018, 11, 3, 19-25
- Refereed, In Proceedings of 2018 International Conference on Parallel and Distributed Processing Techniques and Applications, Automatic Font Generation For Early-Modern Japanese Printed Books, TAKATA Masami; Yuki Takemoto; Yu Ishikawa; Masami Takata; Kazuki Joe, Jul. 2018, 326-332
- Refereed, In Proceedings of 2018 International Conference on Parallel and Distributed Processing Techniques and Applications, Fast Computation Method of Column Space by using the DQDS Method and the OQDS Method, TAKATA Masami; Sho Araki; Hiroki Tanaka; Masami Takata; Kinji Kimura; Yoshimasa Nakamura, Jul. 2018, 333-339
- Refereed, In Proceedings of 2018 International Conference on Parallel and Distributed Processing Techniques and Applications, Improvement of Computing Partial Singular Value Decomposition for Dense Matrix using Thick-restart-Lanczos Method, TAKATA Masami; Masana Aoki; Masami Takata; Kinji Kimura; Yoshimasa Nakamura, Jul. 2018, 340-346
- Refereed, Implementation of Computing Partial Singular Value Decomposition for Principal Component Analysis Using ARPACK, TAKATA Masami, Mar. 2018, 11, 1, 37-44
- Refereed, In Proceedings of 2017 International Conference on Parallel and Distributed Processing Techniques and Applications, Validation of EEG Authentication Accuracy with Electrode Slippage, TAKATA Masami; Yu Ishikawa; Kaori Nishibata; Masami Takata; Hiroyasu Kamo; Kazuki Joe, Jul. 2017, 302-308
- Refereed, In Proceedings of 2017 International Conference on Parallel and Distributed Processing Techniques and Applications, Hand shape recognition using the sEMG of the upper extremity, TAKATA Masami; Mayuko Iwamoto; Yu Ishikawa; Masami Takata; Kazuki Joe, Jul. 2017, 295-301
- Refereed, In Proceedings of 2017 International Conference on Parallel and Distributed Processing Techniques and Applications, Early-Modern Printed Character Recognition using Ensemble Learning, TAKATA Masami; Kaori Fujimoto; Yu Ishikawa; Masami Takata; Kazuki Joe, Jul. 2017, 288-294
- Refereed, In Proceedings of 2017 International Conference on Parallel and Distributed Processing Techniques and Applications, An Improvement of Augmented Implicitly Restarted Lanczos Bidiagonalization Method, TAKATA Masami; Yuya Ishida; Masami Takata; Kinji Kimura; Yoshimasa Nakamura, Jul. 2017, 281-287
- Refereed, 脳波から求めた複数特徴量の組合せによる生体認証, TAKATA Masami, Mar. 2017, 10, 1, 23-32
- Refereed, Performance Evaluation of Golub-Kahan-Lanczos Algorithm with Reorthogonalization by Classical Gram-Schmidt Algorithm and OpenMP, TAKATA Masami; Masami Takata; Hiroyuki Ishigami; Kinji Kimura; Yuki Fujii; Hiroki Tanaka; Yoshimasa Nakamura, Aug. 2016, 9, 2, 1-8, 8
- Refereed, 近代書籍を対象とした多フォント漢字認識, TAKATA Masami, Aug. 2016, 9, 2, 33-40, 40
- Refereed, In Proceedings of 2016 International Conference on Parallel and Distributed Processing Techniques and Applications, Implementation of Computing Singular Pairs for Large Scale Matrices using ARPACK, TAKATA Masami; Masami Takata; Sho Araki; Kinji Kimura; Yuki Fujii; Yoshimasa Nakamura, Jul. 2016, 349-355
- Refereed, In Proceedings of 2016 International Conference on Parallel and Distributed Processing Techniques and Applications, Biometric Authentication based on Multi-feature Combination using EEG, TAKATA Masami; Yu Ishikawa; Kaori Nishibata; Masami Takata; Hiroyasu Kamo; Kazuki Joe, Jul. 2016, 394-400
- Refereed, In Proceedings of 2016 International Conference on Parallel and Distributed Processing Techniques and Applications, Correlation of Proximity Voluntary Muscles EMG and EEG, TAKATA Masami; Hitomi Oigawa; Yu Ishikawa; Umeda Tomohiro; Masami Takata; Kazuki Joe, Jul. 2016, 401-407
- Refereed, In Proceedings of 2016 International Conference on Parallel and Distributed Processing Techniques and Applications, Comparison of Feature Extraction Methods for Early-Modern Japanese Printed Character Recognition, TAKATA Masami; Kazumi Kosaka; Kaori Fujimoto; Yu Ishikawa; Masami Takata; Kazuki Joe, Jul. 2016, 408-414
- Refereed, In Proceedings of 2015 International Conference on Parallel and Distributed Processing Techniques and Applications, A Personal Classification Method Using Spatial Information of Multi-channel EEG, TAKATA Masami; Yu Ishikawa; Chinami Yoshida; Masami Takata; Hiroyasu Kamo; Kazuki Joe, Jul. 2015, I, 229-235
- Refereed, In Proceedings of 2015 International Conference on Parallel and Distributed Processing Techniques and Applications, Performance Evaluation of Golub-Kahan-Lanczos Algorithm with Reorthogonalization by Classical Gram-Schmidt Algorithm and OpenMP, TAKATA Masami; Masami Takata; Hiroyuki Ishigami; Kinji Kimura; Yuki Fujii; Hiroki Tanaka; Yoshimasa Nakamura, Jul. 2015, I, 243-249
- Refereed, In Proceedings of 2015 International Conference on Parallel and Distributed Processing Techniques and Applications, A Music Composition Model with Genetic Programming -A Case Study of Chord Progression and Bassline-, TAKATA Masami; Kanae Kunimatsu; Yu Ishikawa; Masami Takata; Kazuki Joe, Jul. 2015, I, 256-262
- Refereed, In Proceedings of 2015 International Conference on Parallel and Distributed Processing Techniques and Applications, An Effective and Interactive Training Data Collection Method for Early-Modern Japanese Printed Character Recognition, TAKATA Masami; Kazumi Kosaka; Taeka Awazu; Yu Ishikawa; Masami Takata; Kazuki Joe, Jul. 2015, I, 276-282
- Refereed, In Proceedings of 2015 International Conference on Parallel and Distributed Processing Techniques and Applications, Visualization of Sensory Weight for Shouldering Randoseru, TAKATA Masami; Hitomi Oigawa; Yu Ishikawa; Masami Takata; Kazuki Joe, Jul. 2015, I, 297-303
- Refereed, 活字データの分類を用いた進化計算による近代書籍からのルビ除去, TAKATA Masami, Mar. 2015, 8, 1, 72-79
- Refereed, In Proceedings of 2014 International Conference on Parallel and Distributed Processing Techniques and Applications, Information Processing Society of Japan (IPSJ), Accelerating the Numerical Computation of Positive Roots of Polynomials using Improved Bounds, TAKATA Masami; Kinji Kimura; Takuto Akiyama; Hiroyuki Ishigami; Masami Takata; Yoshimasa Nakamura, The continued fraction method for isolating the positive roots of a univariate polynomial equation is based on Vincent's theorem, which computes all of the real roots of polynomial equations. In this paper, we propose two new lower bounds which accelerate the fraction method. The two proposed bounds are derived from a theorem stated by Akritas et al., and use different pairing strategies for the coefficients of the target polynomial equations from the bounds proposed by Akritas et al. Numerical experiments show that the proposed lower bounds are more effective than existing bounds for some special polynomial equations and random polynomial equations, and are competitive with them for other special polynomial equations., Jul. 2014, II, 6, 201-207, 4
- Refereed, In Proceedings of 2014 International Conference on Parallel and Distributed Processing Techniques and Applications, Validation of EEG Personal Authentication with Multi-channels and Multi-tasks, TAKATA Masami; Yu Ishikawa; Chinami Yoshida; Masami Takata; Kazuki Joe, Jul. 2014, II, 182-188
- Refereed, 7th international joint conference on BIOmedical engineering Systems and TEChnologies, Biometrics Authentication using Another Feature of Heartbeat Waveform, TAKATA Masami; Rhoko Nomura; Tomohiro Umeda; Naoko Yoshii; Masami Takata; Kazuki Joe, Mar. 2014, CD
- Refereed, 3rd International Conference on Pattern Recognition Applications and Methods, A Multi-fonts Kanji Character Recognition Method for Early-modern Japanese Printed Books with Ruby Characters, TAKATA Masami; Taeka Awazu; Manami Fukuo; Masami Takata; Kazuki Joe, Mar. 2014, CD
- Refereed, SEMANTIC TECHNOLOGY, SPRINGER-VERLAG BERLIN, Ontology Construction Support for Specialized Books, Yuki Eguchi; Yuri Iwakata; Minami Kawasaki; Masami Takata; Kazuki Joe, In this paper, we present a support system for ontology construction just based on a given specialized book with lowest possible cost. The system tries to combine minimum hand and mostly automatic constructions. It extracts required information for the ontology design from the specialized book with presenting yes-no selections to an expert of the specialized book. The ontology construction is performed automatically just using the answers of the expert. The constructed ontology is reliably and highly technical since it is constructed on the basis of the specialized book. In addition, since user operations are restricted only to yes-no selection, any expert can make use of our system without any special knowledge about ontology., 2014, 8388, 159, 174, International conference proceedings, 10.1007/978-3-319-06826-8_13
- Refereed, 2014 7TH BIOMEDICAL ENGINEERING INTERNATIONAL CONFERENCE (BMEICON), IEEE, Biometrics Authentication Based on Chaotic Heartbeat waveform, Ryoko Nomura; Yu Ishikawa; Tomohiro Umeda; Masami Takata; Hiroyasu Kamo; Kazuki Joe, In this paper, we propose a personal authentication method using heartbeat waveforms to enhance the security in wireless communication. In the heartbeat waveforms of a human being, it is known that there are discriminative characteristic features and the mimicking is very difficult. Therefore, their application to personal authentication has been studied. Existing method performs personal authentication using a chaos indicator of ECG. In this paper, we propose an authentication method that extends the index in order to increase the accuracy of authentication. To validate that our personal authentication method is applicable, we perform some experiments to show that our method provides better authentication than existing one., 2014, 1-5, International conference proceedings
- Refereed, Generating Matrices Having Large Condition Numbers for Performance Evaluation of Singular Value Decomposition Algorithms, TAKATA Masami, Dec. 2013, 6, 3, 75-86, 86
- Refereed, New Shift Strategy in the dqds Algorithm and the m2dLVs Algorithm for Singular Values, TAKATA Masami, Sep. 2013, 6, 3, 94-107
- Refereed, α波構成要素の切出しと解析, TAKATA Masami, Aug. 2013, 6, 2, 93-103
- Refereed, Ruby Removal Filters Using Genetic Programming for Early-modern Japanese Printed Books, TAKATA Masami, Aug. 2013, 6, 2, 53-62, 62
- Refereed, The Development and Evaluation of a Sumiji Learning Support System for Visually Impaired People, TAKATA Masami, Aug. 2013, 6, 2, 128-136
- Refereed, In Proceedings of 2013 International Conference on Parallel and Distributed Processing Techniques and Applications, Locality Analysis for Characterizing Applications Based on Sparse Matrices, TAKATA Masami; Noboru Tanabe; Sonoko Tomimori; Masami Takata; Kazuki Joe, Jul. 2013, II, 299-315
- Refereed, In Proceedings of 2013 International Conference on Parallel and Distributed Processing Techniques and Applications, Information Processing Society of Japan (IPSJ), Improved Computation of Bounds for Positive Roots of Polynomials, TAKATA Masami; Masami Takata; Takuto Akiyama; Sho Araki; Kinji Kimura; Yoshimasa Nakamur, A new lower bound for computing positive roots of polynomial equations is proposed. We discuss a two-stage algorithm for computing positive roots of polynomial equations. We employ the new bound to accelerate the continued fraction method based on Vincent's theorem. Finally, we conduct experiments to evaluate the effectiveness of the proposed lower bound., Jul. 2013, II, 8, 168-174, 4
- Refereed, Xeon PhiのGather命令とHMCのGatherの差異, TAKATA Masami, May 2013, 2013, 126-127, 127
- Refereed, 疎行列キャッシュに基づくGraph500ベンチマークの特性解析, TAKATA Masami, May 2013, 2013, 158-161
- Refereed, The Fifth International Conference on future Computational Technologies and Applications, Future Irregular Computing with Memory Accelerators, TAKATA Masami; Noboru Tanabe; Junko Kogou; Sonoko Tomimori; Masami Takata; Kazuki Joe, May 2013, 74-80
- Refereed, 古典油彩画グレーズ技法シミュレーションの高速化, TAKATA Masami, Mar. 2013, 6, 1, 119-127, 127
- Refereed, JSIAM Letters, The Japan Society for Industrial and Applied Mathematics, An application of the Kato-Temple inequality on matrix eigenvalues to the dqds algorithm for singular values, TAKATA Masami; Takumi Yamashita; Kinji Kimura; Masami Takata; Yoshimasa Nakamura, Choice of suitable shifts strongly influences performance of numerical algorithms with shift for computing matrix eigenvalues or singular values. On the dqds (differential quotient difference with shifts) algorithm for singular values, a new shift strategy is proposed in this paper. The new shift strategy includes shifts obtained from an application of the Kato-Temple inequality on matrix eigenvalues. The dqds algorithm with the new shift strategy is shown to have a better performance in iteration number than that of the subroutine DLASQ in LAPACK., Mar. 2013, 5, 21-24, 24, 10.14495/jsiaml.5.21
- Refereed, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), Character of graph analysis workloads and recommended solutions on future parallel systems, Noboru Tanabe; Sonoko Tomimori; Masami Takata; Kazuki Joe, Graph500 is a benchmark suite for big data analysis. Matrices used for Graph500 inherit the properties of graph analysis such as breadth first search for SNS and PageRank for web searching engine. Especially power saving is very important for its execution on future massively parallel processors and clouds. The spatial locality of sparse matrices used for Graph500 and its behaviors on cache memory are investigated. The experimental results show the spatial locality of sparse matrices used for Graph500 is very low. It is very difficult to solve the problem by just software approach because of the huge size and the randomness of their accesses. Therefore, we recommend hardwired scatter/gather functions at memory side. They improve the processing speed in an order of magnitude. For achieving both of low power and high throughput of random access, we recommend implementing hardwired scatter/gather functions on logic-base in Hybrid Memory Cube (HMC). We also describe brief considerations of the power saving in the case of low cache hit rate application such as graph500. For example, when the hit rate is 15%, the power saving ratio of memory access is about 30-fold. © Springer International Publishing Switzerland 2013., 2013, 8285, 1, 402, 415, International conference proceedings, 10.1007/978-3-319-03859-9_35
- Refereed, Graph500競争を独走するための未開拓領域の予備評価, TAKATA Masami, Jan. 2013, 2013, 85-85, 85
- Refereed, 特異値計算アルゴリズムdqds法およびmdLVs法のための新しいシフト戦略, TAKATA Masami, Jan. 2013, 2013, 1-10
- Refereed, HIGH PERFORMANCE COMPUTING FOR COMPUTATIONAL SCIENCE - VECPAR 2012, SPRINGER-VERLAG BERLIN, Accelerating the Reorthogonalization of Singular Vectors with a Multi-core Processor, Hiroki Toyokawa; Hiroyuki Ishigami; Kinji Kimura; Masami Takata; Yoshimasa Nakamura, The dLV twisted factorization is an algorithm to compute singular vectors for given singular values fast and in parallel. However the orthogonality of the computed singular vectors may be worse if a matrix has clustered singular values. In order to improve the orthogonality, reorthogonalization by, for example, the modified Gram-Schmidt algorithm should be done. The problem is that this process takes a longer time. In this paper an algorithm to accelerate the reorthogonalization of singular vectors with a multi-core processor is devised., 2013, 7851, 379, 390, International conference proceedings
- Refereed, In Proceedings of JSST 2012 International Conference on Simulation Technology, Real-Time Polygon Reconstruction for Digital Archives of Cultural Properties, TAKATA Masami; Megumi Okumoto; Yuri Iwakata; Asuka Komeda; Tomoko Yonezawa; Masami Takata; Kazuki Joe, Sep. 2012, 429-435
- Refereed, In Proceedings of JSST 2012 International Conference on Simulation Technology, Manipulation of a VR object using user’s pre-motion, TAKATA Masami; Shiori Mizuno; Asuka Komeda; Tomoko Yonezawa; Naoko Yoshii; Masami Takata; Kazuki Joe, Sep. 2012, 436-442
- Refereed, 長行を折畳む疎行列ベクトル積方式とGather機能付メモリによる高速化, TAKATA Masami, Aug. 2012, 5, 4, 112-124, 124
- Refereed, In Proceedings of 2012 International Conference on Parallel and Distributed Processing Techniques and Applications, Performance Evaluation of Some Inverse Iteration Algorithms on PowerXCellTM 8i Processor, TAKATA Masami; Masami Takata; Hiroyuki Ishigami; Kinji Kimura; Yoshimasa Nakamura, Jul. 2012, II, 711-717
- Refereed, In Proceedings of 2012 International Conference on Parallel and Distributed Processing Techniques and Applications, Real Time Spatiotemporal Biological Stress Level Checking, TAKATA Masami; Marina Uchimura; Yuki Eguchi; Minami Kawasaki; Yoshii Naoko; Tomohiro Umeda; Masami Takata; Kazuki Joe, Jul. 2012, II, 12, 744-750, 6
- Refereed, In Proceedings of 2012 International Conference on Parallel and Distributed Processing Techniques and Applications, AR Based Spatial Reasoning Capacity Training for Students, TAKATA Masami; Mai Hatano; Tomoko Yonezawa; Naoko Yoshii; Masami Takata; Kazuki Joe, Jul. 2012, II, 11, 751-757, 6
- Refereed, 大規模疎行列やメモリシステムの特性を考慮した高速な汎用疎行列ライブラリの実現に向けて, TAKATA Masami, May 2012, 2012, 65-66, 66
- Refereed, Gather機能を有するメモリアクセラレータの疎行列計算への応用, TAKATA Masami, Jan. 2012, 2012, 5, 32-41
- Refereed, ASIASIM 2012, PT I, SPRINGER-VERLAG BERLIN, A Multi-resolution Display Method for Digital Archives of Cultural Properties Using Polygon Reconsruction, Megumi Okumoto; Yuri Iwakata; Asuka Komeda; Tomoko Yonezawa; Masami Takata; Kazuki Joe, In this paper, we propose a multi-resolution display method for digital archives of cultural properties using polygon reconstruction. When digital archives of cultural properties are displayed in VR systems for research purpose, mesh resolution had to be changeable on the demand of user. Additionally, for user's comfortability, polygon reconstruction needs to be executed in real-time. History of preliminary polygon reductions is adopted for the proposed method so that polygon reconstruction is executed in real-time. To validate the VR system using the polygon reconstruction based multi-resolution display method, some experiments are performed. As the result of the experiments, the proposed method is performed within 1.0 second, which is considered as "real-time" by the definition of typical user-interface., 2012, 323, Part 1, 190, +, International conference proceedings
- Refereed, ASIASIM 2012, PT I, SPRINGER-VERLAG BERLIN, Pre-motion Based VR Object Manipulation Definitions and Preliminary Experiments, Shiori Mizuno; Asuka Komeda; Naoko Yoshii; Tomoko Yonezawa; Masami Takata; Kazuki Joe, In this paper, we propose a new method to manipulate objects by using user's pre-motion in a VR environment. Users are provided with an instinctually easy interface to VR with using their natural behaviors as their commands for manipulating VR objects. Hand pre-shaping is known as human's unconscious behavior to face a small object to be grasped. The definitions of pre-motions are determined by users' initial behaviors. Therefore, we present the definitions to classify characteristics of the kinds of objects and pre-motions. Using the above definitions, we develop a prototype system to validate the classifications. Consequently, manipulating VR objects by pre-motion is possible and promising., 2012, 323, Part 1, 499, +, International conference proceedings
- Refereed, 5TH BIOMEDICAL ENGINEERING INTERNATIONAL CONFERENCE (BMEICON 2012), IEEE, Constitution and Phase Analysis of Alpha Waves, Yu Ishikawa; Masami Takata; Kazuki Joe, Alpha waves are electroencephalogram discovered by Hans Berger in 1929 and have been studied by many researchers. Recently the amplitude and the phase of alpha waves attract attention, and various studies are reported. So far the alpha waves are not concretely modeled to explain how they are constituted. In this paper, we analyze the phase of alpha waves for their future modeling. As pre-processing, we extract alpha wave data from EEGs and divide the data into alpha wave constituent waves. Analyzing the feature quantity of the alpha wave constituent waves, it turns out that the amplitude and the wavelength of alpha wave constituent waves are correlated with a constant time delay., 2012, 1-5, International conference proceedings
- Refereed, NVIDIA GTC Workshop Japan 2011, GPGPU向けメモリアクセラレータ, 田邊昇; Boonyasitpichai Nuttapon; 中條拓伯; 小郷絢子; 高田雅美; 城和貴, Jul. 2011, Scientific journal
- Refereed, In Proceedings of 2011 International Conference on Parallel and Distributed Processing Techniques and Applications, An Improved Shift Strategy for the Modified Discrete Lotka-Volterra with Shift Algorithm, TAKATA Masami; Masami Takata; Takumi Yamashita; Akira Ajisaka; Kinji Kimura; Yoshimasa Nakamura, Jul. 2011, II, 4, 720-726, 6
- Refereed, In Proceedings of 2011 International Conference on Parallel and Distributed Processing Techniques and Applications, Evaluation of the SVM based Multi-Fonts Kanji Character Recognition Method for Early-Modern Japanese Printed Books, TAKATA Masami; Manami Fukuo; Yurie Enomoto; Nakao Yoshii; Masami Takata; Tsukasa Kimesawa; Kazuki Joe, Jul. 2011, II, 727-732
- Refereed, In Proceedings of 2011 International Conference on Parallel and Distributed Processing Techniques and Applications, Optimization of the Particle-based Volume Rendering for GPUs with Hiding Data Transfer Latency, TAKATA Masami; Kyoko Nakao; Erika Matsui; Naoko Yoshii; Masami Takata; Kazuki Joe, Jul. 2011, II, 733-738
- Refereed, In Proceedings of 2011 International Conference on Parallel and Distributed Processing Techniques and Applications, A Real-time Analysis Environment for a Wireless BMI Device Enobio, TAKATA Masami; Yu Ishikawa; Sanae Teramae; Naoko Yoshii; Masami Takata; Kazuki Joe, Jul. 2011, II, 739-744
- Refereed, IPSJ Online Transactions, Information Processing Society of Japan, On Auto-tuned Pre/postprocessing for the Singular Value Decomposition of Dense Square Matrices, TAKATA Masami, An auto-tuning technique is devised for fast pre/postprocessing for the singular value decomposition of dense square matrices with the Dongarra or the Bischof-Murata algorithms. The computation speed of these two algorithms varies depending on a parameter and specification of computers. By dividing these algorithms into several parts and by modeling each of them, we can estimate their computation times accurately. This enables us to choose an optimal parameter and the faster algorithm prior to execution. Consequently the pre/postprocessing is done faster and the singular value decomposition is applied faster to dense square matrices. Numerical experiments show the effectiveness of the proposed auto-tuning function. The I-SVD library, which incorporates this auto-tuning function, has been published., May 2011, 4, 3, 9-21, 146, 10.2197/ipsjtrans.4.134
- Refereed, PROCEEDINGS OF THE FIRST WORKSHOP ON IRREGULAR APPLICATIONS: ARCHITECTURES AND ALGORITHM (IAAA'11), ASSOC COMPUTING MACHINERY, A Memory Accelerator with Gather Functions for Bandwidth-bound Irregular Applications, Noboru Tanabe; Boonyasitpichai Nuttapon; Hironori Nakajo; Yuka Ogawa; Junko Kogou; Masami Takata; Kazuki Joe, Compute intensive processing can be easily accelerated using processors with many cores such as GPUs. However, memory bandwidth limitation becomes serious year by year for memory bandwidth intensive applications such as sparse matrix vector multiplications (SpMV). In order to accelerate memory bandwidth intensive applications, we have proposed a memory system with additional functions of scattering and gathering. For the preliminary evaluation of our proposed system, we assumed that the throughput of the memory system was sufficient. In this paper, we propose a memory system with scattering and gathering using many narrow memory channels. We evaluate the feasible throughput of the proposed memory system based on DDR3 DRAM with the modified DRAMsim2 simulator. In addition, we evaluate the performance of SpMV using our method for the proposed memory system and a GPU. We have confirmed the proposed memory system has good performance and good stability for matrix shape variation using fewer pins for external memory., 2011, 35, 42, International conference proceedings
- Refereed, CHEMICAL PHYSICS LETTERS, ELSEVIER SCIENCE BV, Analysis of motion features for molecular dynamics simulation of proteins, Mayumi Kamada; Mikito Toda; Masakazu Sekijima; Masami Takata; Kazuki Joe, Recently, a new method for time series analysis using the wavelet transformation has been proposed by Sakurai et al. We apply it to molecular dynamics simulation of Thermomyces lanuginosa lipase (TLL). Introducing indexes to characterize collective motion of the protein, we have obtained the following two results. First, time evolution of the collective motion involves not only the dynamics within a single potential well but also takes place wandering around multiple conformations. Second, correlation of the collective motion between secondary structures shows that collective motion exists involving multiple secondary structures. We discuss future prospects of our study involving 'disordered proteins'. (C) 2010 Elsevier B.V. All rights reserved., Jan. 2011, 502, 4-6, 241, 247, Scientific journal, 10.1016/j.cplett.2010.12.028
- Refereed, PROCEEDINGS OF THE 19TH INTERNATIONAL EUROMICRO CONFERENCE ON PARALLEL, DISTRIBUTED, AND NETWORK-BASED PROCESSING, IEEE COMPUTER SOC, Scaleable Sparse Matrix-Vector Multiplication with Functional Memory and GPUs, Noboru Tanabe; Yuuka Ogawa; Masami Takata; Kazuki Joe, Sparse matrix-vector multiplication on GPUs faces to a serious problem when the vector length is too large to be stored in GPU's device memory. To solve this problem, we propose a novel software-hardware hybrid method for a heterogeneous system with GPUs and functional memory modules connected by PCI express. The functional memory contains huge capacity of memory and provides scatter/gather operations. We perform some preliminary evaluation for the proposed method with using a sparse matrix benchmark collection. We observe that the proposed method for a GPU with converting indirect references to direct references without exhausting GPU's cache memory achieves 4.1 times speedup compared with conventional methods. The proposed method intrinsically has high scalability of the number of GPUs because intercommunication among GPUs is completely eliminated. Therefore we estimate the performance of our proposed method would be expressed as the single GPU execution performance, which may be suppressed by the burst-transfer bandwidth of PCI express, multiplied with the number of GPUs., 2011, 101, 108, International conference proceedings, 10.1109/PDP.2011.92
- Refereed, In Proceedings of 2010 International Conference on Parallel and Distributed Processing Techniques and Applications, Multi-Regression Analysis of Music Impressions for Music Evaluation, TAKATA Masami; Tomomi Yamanaka; Kyoko Komatsu; Naoko Yoshii; Masami Takata; Kazuki Joe, Jul. 2010, II, 12, 693-702, 6
- Refereed, In Proceedings of 2010 International Conference on Parallel and Distributed Processing Techniques and Applications, A Music Composition Model with Genetic Programming, TAKATA Masami; Kyoko Komatsu; Tomomi Yamanaka; Masami Takata; Kazuki Joe, Jul. 2010, II, 686-692
- Refereed, In Proceedings of 2010 International Conference on Parallel and Distributed Processing Techniques and Applications, Optimization of GROMACS for CUDA Environments, TAKATA Masami; Noriko Hata; Masami Takata; Kazuki Joe, Jul. 2010, II, 679-685
- Refereed, In Proceedings of 2010 International Conference on Parallel and Distributed Processing Techniques and Applications, Update Dependence Analysis of Web Pages for Incremental Crawling, TAKATA Masami; Naomi Hiromichi; Masami Takata; Kazuki Joe, Jul. 2010, II, 672-678
- Refereed, In Proceedings of 2010 International Conference on Parallel and Distributed Processing Techniques and Applications, Feature Detection of Volume Data based on Topology and its Application to Database Construction, TAKATA Masami; Keiko Kuriu; Masami Takata; Kazuki Joe, Jul. 2010, II, 6, 665-671, 6
- Refereed, In Proceedings of 2010 International Conference on Parallel and Distributed Processing Techniques and Applications, Speed-up in mdLVs by Limitation in Computational Number of Shift, TAKATA Masami; Masami Takata; Kinji Kimura; Yoshimasa Nakamura, Jul. 2010, II, 619-625
- Refereed, 密正方行列特異値分解における並列I-SVD法の特性を用いた後処理の高速化, TAKATA Masami, Jun. 2010, 3, 2, 30-38, 38
- Refereed, GPUと機能メモリを用いたヘテロシステムによるスケーラブルな疎行列ベクトル積高速化の提案, TAKATA Masami, May 2010, 2010, 5, 109-110, 110
- Refereed, 電車ノイズを含む地電位差データからの矩形状地震前駆的シグナル自動抽出, TAKATA Masami, Mar. 2010, 3, 2, 22-31, 31
- Seibutsu Butsuri, The Biophysical Society of Japan General Incorporated Association, 3P046 Time-series Analysis of Protein Structure using Feature of Motion(Protein: Structure & Function,The 48th Annual Meeting of the Biophysical Society of Japan), Kamada Mayumi; Toda Mikito; Sekijima Masakazu; Takata Masami; Joe Kazuki, 2010, 50, 2, S153, 10.2142/biophys.50.S153_2
- Refereed, 密正方行列特異値分解における並列I-SVD法の特性を用いた後処理の高速化, TAKATA Masami, Jan. 2010, 2010, 43-50
- Refereed, In Proceedings of 2009 International Conference on Parallel and Distributed Processing Techniques and Applications, Clustering the Temporal Sequences Feature of 3D Protain Structure, TAKATA Masami; Mayumi Kamada; Sachi Kimura; Mikito Toda; Masami Takata; Kazuki Joe, Jul. 2009, II, 749-755
- Refereed, In Proceedings of 2009 International Conference on Parallel and Distributed Processing Techniques and Applications, Optimization of a GP Application for the Cell Processor, TAKATA Masami; Yuri Shirakawa; Chiho Misaka; Chisato Ishikawa; Masami Takata; Kazuki Joe, Jul. 2009, II, 742-748
- Refereed, In Proceedings of 2009 International Conference on Parallel and Distributed Processing Techniques and Applications, Modeling the Developing Process of Depth Perception for Elementary Students, TAKATA Masami; Naoko Yoshii; Masami Takata; Kazuki, Jul. 2009, II, 735-741
- Refereed, In Proceedings of 2009 International Conference on Parallel and Distributed Processing Techniques and Applications, Recognition of Multi-Fonts Character in Early-Modern Printed Books, TAKATA Masami; Chisato Ishikawa; Naomi Ashida; Yurie Enomoto; Masami Takata; Tsukasa Kimesawa; Kazuki Joe, Jul. 2009, II, 728-734
- Refereed, In Proceedings of 2009 International Conference on Parallel and Distributed Processing Techniques and Applications, Deterioration Lawns Model Constructed from Image Data, TAKATA Masami; Yurie Enomoto; Chisato Ishikawa; Masami Takata; Kazuki Joe, Jul. 2009, II, 721-727
- Refereed, In Proceedings of 2009 International Conference on Parallel and Distributed Processing Techniques and Applications, On Parallelization of the I-SVD Algorithm and its Evaluation for Clustered Singular Values, TAKATA Masami; Hiroki Toyokawa; Kinji Kimura; Masami Takata; Yoshimasa Nakamura, Jul. 2009, II, 10, 711-717, 6
- Refereed, In Proceedings of 2009 International Conference on Parallel and Distributed Processing Techniques and Applications, Speed-up in mdLVs by Limitation in Computational Number of Shift, TAKATA Masami; Masami Takata; Kinji Kimura; Yoshimasa Nakamura, Jul. 2009, II, 704-710
- Refereed, In Proceedings of 2009 International Conference on Parallel and Distributed Processing Techniques and Applications, The Architecture of Visualization System using Memory with Memory-side Gathering and CPUs with DMA-type Memory Accessing, TAKATA Masami; Noboru Tanabe; Manami Sasaki; Hironori Nakajo; Masami Takata; Kazuki Joe, Jul. 2009, II, 427-433
- Refereed, iアプリによる数値計算実アプリケーションの実装例, TAKATA Masami, Mar. 2009, 2, 2, 38-46, 46
- Refereed, JSIAM Letters, The Japan Society for Industrial and Applied Mathematics, On parallelism of the I-SVD algorithm with a multi-core processor, TAKATA Masami; Hiroki Toyokawa; Kinji Kimura; Masami Takata; Yoshimasa Nakamura, The I-SVD algorithm is a singular value decomposition algorithm consisting of the mdLVs scheme and the dLV twisted factorization. By assigning each piece of computations to each core of a multi-core processor, the I-SVD algorithm is parallelized partly. The basic idea is a use of splitting and deflation in the mdLVs. The splitting divides a bidiagonal matrix into two smaller matrices. The deflation gives one of the singular values, and then the corresponding singular vector becomes computable by the dLV. Numerical experiments are done on a multi-core processor, and the algorithm can be about 5 times faster with 8 cores., Jan. 2009, 1, 48-51, 51, 10.14495/jsiaml.1.48
- Refereed, Transactions of the Japan Society for Industrial and Applied Mathematics, The Japan Society for Industrial and Applied Mathematics, 固有値分解を目的としたツイスト分解法による分割統治法の改善, TAKATA Masami, An algorithm which consists of a simplified D & C and twisted factorization is proposed for symmetric tridiagonal eigenvalue decomposition. The complexity is O(n^2) and the memory usage is O(n) if no cluster exists. The orthogonality can be improved by additional one step of the inverse iteration, although the classical D & C shows better one. In some numerical tests, our algorithm shows stable speed and better accuracy of the decompositions. But the orthogonality is worse than those of the classical D & C in up to three digits., Dec. 2008, 18, 4, 611-630, 630, 10.11540/jsiamt.18.4_611
- Refereed, Transactions of the Japan Society for Industrial and Applied Mathematics, The Japan Society for Industrial and Applied Mathematics, 特異値分解法I-SVDにおける左特異ベクトル計算部の改善, TAKATA Masami, In this paper, computation of left singular vectors by the I-SVD algorithm for fast bidagonal SVD is improved so that the computed left singular vectors have better orthogonality and accuracy. The efficiency of improved I-SVD is evaluated through numerical experimentations., Sep. 2008, 18, 3, 389-407, 407, 10.11540/jsiamt.18.3_389
- Refereed, In Proceedings of International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA'08), Real-time 3D Movie Generation by Anaglyph for Live Streaming, TAKATA Masami; Yuki Kohor, Jul. 2008, II, 758-763, 763
- Refereed, In Proceedings of International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA'08), Information Processing Society of Japan (IPSJ), Construction of an Ethanol-Tolerant Yeast Model using the E-cell System, TAKATA Masami; Mayumi Kamada他, In brewing Japanese sake, since ethanol reaches to a high concentration by using a peculiar manufacturing method, yeast with strong alcohol tolerance is needed. Such yeast can be obtained through huge number of trial and error processes with huge cost and long time. To avoid this problem, we try to model the response mechanism of alcohol-tolerant yeast by computer simulation based on known parameters from existing literatures. We hope new insight will be obtained by our model. In this paper, we model a simple metabolism of 1,3-β glucan synthesis, which is the major components of cell well, and a signaling pathway of the Pkcl-MAPK cascade using the E-Cell system., Jul. 2008, II, 65, 776-782, 30
- Refereed, GRAPP 2008: PROCEEDINGS OF THE THIRD INTERNATIONAL CONFERENCE ON COMPUTER GRAPHICS THEORY AND APPLICATIONS, INSTICC-INST SYST TECHNOLOGIES INFORMATION CONTROL & COMMUNICATION, An interactive 3D visualization model by live streaming for remote scientific visualization, Eriko Touma; Satomi Hara; Mari Kurumi; Yuri Shirakawa; Chisato Ishikawa; Masami Takata; Takeshi Horinouchi; Kazuki Joe, Recent improvement of high-end GPUs has made it possible to perform real-time 3D visualization such as volume rendering and 3D contour plot for scientific data locally. A web browser based remote 3D visualization by visualization servers is attractive, but data transfer overhead prevents from performing interactive operations. We propose an interactive remote 3D visualization model by live streaming for geophysical fluids research. In this model, we use live streaming flash media for the web browser based operations keeping minimum quality of data analysis and minimum bit rate for live streaming of flash media. Preliminary experiments with a prototype system validate the effectiveness of our proposing model., 2008, II, 409, 414, International conference proceedings
- Refereed, 悪条件2重対角行列のための特異値分解I-SVD法の改良, TAKATA Masami, Jan. 2008, 2008, 2, 9-16
- Refereed, 情報爆発時代に向けた大気科学分野のための3次元可視化モデルの提案, TAKATA Masami, Dec. 2007, 48, SIG19(TOM19), 86-98
- Refereed, Information Processing Society of Japan (IPSJ), アブストラクトを用いた原子分子物理学分野の論文分類支援システムの設計と実装, TAKATA Masami, The cross section data of ionization and excitation by collision among atoms, mulecules and electrons is very useful in various research fields. We can obtain such data out of online jounals of atomic and molecular physics research as digital papers. To obtain the data, we need to classify online papers. However, the classification of the online papers is difficult because there are just abstracts available for free on web pages in general. In this paper, we design a paper classification supporting system to find papers including the data, using just abstracts. We apply a machine learning technique, which is a conventional text classification method, to the system in order to prove that our system using just abstracts is efficient., Oct. 2007, 48, SIG15(TOM18), 189-198, 198
- Refereed, In Proceedings of International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA'07), Algorithms for Generating Bidiagonal Test Matrices, TAKATA Masami; Masami Takata, Jun. 2007, II, 732-738, 738
- Refereed, In Proceedings of International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA'07), CSREA Press, Development of Molecular Dynamics Simulation based Flexible Docking System, TAKATA Masami; Sachi Kimura, Jun. 2007, II, 739-745, 745, International conference proceedings
- Refereed, In Proceedings of International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA'07), Construction of Paper Classification System Using SVM, TAKATA Masami; Naomi Ashida他, Jun. 2007, II, 759-765
- Refereed, In Proceedings of International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA'07), 3D Visualization System Gateau for Atmospheric Science: Design Concept and Practical Evaluation, TAKATA Masami; Eriko Toum, Jun. 2007, II, 766-772
- Refereed, In Proceedings of International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA'07), Optimization of Molecular Dynamics Simulation on Cell Processor, TAKATA Masami; Manami Sasaki他, Jun. 2007, II, 780-786
- Refereed, In Proceedings of International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA'07), CSREA Press, Development of an SVM based Prediction System for Metalbinding Sites in Protein, TAKATA Masami; Masami Nakazawa, Jun. 2007, II, 972-978, 978, International conference proceedings
- Refereed, In Proceedings of International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA'07), Auto Classification of Feces for Health Condition Analysis, TAKATA Masami; Miho Komatsubara, Jun. 2007, II, 979-985
- Refereed, ダブル分割統治法による対称3重対角行列の固有値分解, TAKATA Masami, May 2007, 2007, 5, 121-128
- Refereed, Proceedings of the IADIS International Conference, Aopplied Computing 2007 (AC2007), DEVELOPMENT OF ORTHOGONALITY OF SINGULAR VECTORS COMPUTED BY I-SVD ALGORITHM, TAKATA Masami; Masami Takata, Feb. 2007, 437-442
- Refereed, ADVANCES IN MULTIMEDIA MODELING, PT 1, SPRINGER-VERLAG BERLIN, Similarity searching techniques in content-based audio retrieval via hashing, Yi Yu; Masami Takata; Kazuki Joe, With this work we study suitable indexing techniques to support efficient, content-based music retrieval in large acoustic databases. To obtain the index-based retrieval mechanism applicable to audio content, we pay the most attention to the design of Locality Sensitive Hashing (LSH) and the partial sequence comparison, and propose a fast and efficient audio retrieval framework of query-by-content. On the basis of this indexable framework, four different retrieval schemes, LSH-Dynamic Programming (DP), LSH-Sparse DP (SDP), Exact Euclidian LSH ((ELSH)-L-2)-DP, (ELSH)-L-2-SDP, are presented and estimated in order to achieve an extensive understanding of retrieval algorithms performance. The experiment results indicate that compared to other three schemes, (ELSH)-L-2-SDP exhibits best tradeoff in terms of the response time, retrieval ratio, and computation cost., 2007, 4351, Part I, 397, 407, International conference proceedings
- Refereed, PROCEEDINGS OF THE IASTED INTERNATIONAL CONFERENCE ON PARALLEL AND DISTRIBUTED COMPUTING AND NETWORKS, ACTA PRESS ANAHEIM, Parallelism of double Divide and Conquer algorithm for singular value decomposition, Taro Konda; Hiroaki Tsuboi; Masami Takata; Masashi IIwasaki; Yoshimasa Nakamura, This paper presents some numerical evaluations of parallel double Divide and Conquer for singular value decomposition. For eigenvalue decomposition and singular value decomposition, double Divide and Conquer was recently proposed. It rst computes eigen/singular values by a compact version of Divide and Conquer. The corresponding eigen/singular vectors are then computed by twisted factorization. The speed and accuracy of double Divide and Conquer are as good or even better than standard algorithms such as QR and the original Divide and Conquer. In addition, it is expected that double Divide and Conquer has great parallelism because each step is theoretically parallel and heavy communication is not required. This paper numerically evaluates a parallel implementation of dDC with MPI on some large scale problems using a distributed memory architecture and a massively parallel super computer, especially in terms of parallelism. It shows high scalability and super linear speed-up is observed in some cases., 2007, 393, +, International conference proceedings
- Refereed, PARALLEL COMPUTING TECHNOLOGIES, PROCEEDINGS, SPRINGER-VERLAG BERLIN, Accelerating the singular value decomposition of rectangular matrices with the CSX600 and the integrable SVD, Yusaku Yamamoto; Takeshi Fukaya; Takashi Uneyama; Masami Takata; Kinji Kimura; Masashi Iwasaki; Yoshimasa Nakamura, We propose an approach to speed up the singular value decomposition (SVD) of very large rectangular matrices using the CSX600 floating point coprocessor. The CSX600-based acceleration board we use offers 50GFLOPS of sustained performance, which is many times greater than that provided by standard microprocessors. However, this performance can be achieved only when a vendor-supplied matrix-matrix multiplication routine is used and the matrix size is sufficiently large. In this paper, we optimize two of the major components of rectangular SVD, namely, QR decomposition of the input matrix and back-transformation of the left singular vectors by matrix Q, so that large-size matrix multiplications can be used efficiently. In addition, we use the Integrable SVD algorithm to compute the SVD of an intermediate bidiagonal matrix. This helps to further speed up the computation and reduce the memory requirements. As a result, we achieved up to 3.5 times speedup over the Intel Math Kernel Library running on an 3.2GHz Xeon processor when computing the SVD of a 100,000 x 4000 matrix., 2007, 4671, 340, +, International conference proceedings
- Refereed, Proceedings of the First International Workshop on Learning the Semantics of Audio Signals (LSAS 2006), Index-based Similarity Searching with Partial Sequence Comparison for Query-by-Content Audio Retrieval, TAKATA Masami; Yi Yu, Dec. 2006, 76-86, 86
- Refereed, 2nd IEEE International Conference on e-Science and Grid Computing, Automatic Viewpoint Selection for a Visualization I/F in a PSE, TAKATA Masami; Machiko Nakagawa, Dec. 2006, CD
- Refereed, IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, Naive mean field approximation for sourlas error correcting code, Masami Takata; Hayaru Shouno; Masato Okada, Solving the error correcting code is an important goal with regard to communication theory. To reveal the error correcting code characteristics, several researchers have applied a statistical-mechanical approach to this problem. In our research, we have treated the error correcting code as a Bayes inference framework. Carrying out the inference in practice, we have applied the NMF (naive mean field) approximation to the MPM (maximizer of the posterior marginals) inference, which is a kind of Bayes inference. In the field of artificial neural networks, this approximation is used to reduce computational cost through the substitution of stochastic binary units with the deterministic continuous value units. However, few reports have quantitatively described the performance of this approximation. Therefore, we have analyzed the approximation performance from a theoretical viewpoint, and have compared our results with the computer simulation., Aug. 2006, E89D, 8, 2439, 2447, Scientific journal, 10.1093/ietisy/e89-d.8.2439
- Refereed, In Proceedings of International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA'06), Information Processing Society of Japan (IPSJ), Verification of dLVv Transformation for Singular Vector Computation with High Accuracy, TAKATA Masami; Masami Takata, In this paper, we first examine a relationship between errors of singular value and the accuracy of singular vector, whici is computed through the twisted factorization by the discrete Lotka- Volterra with variable step-size transformation. Secondly, we discuss a suitable parameter choice by evaluating the orthogonality of singular vectors and the errors of singular value decomposition., Jun. 2006, II, 68, 881-887, 46
- Refereed, In Proceedings of International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA'06), Information Processing Society of Japan (IPSJ), Preliminary Result of Parallel Double Divide and Conquer, TAKATA Masami; Taro Konda, This paper shows a concept for parallelization of double Divide and Conquer and its preliminary result. For singular value decomposition, double Divide and Conquer was recently proposed. It first computes singular values by a compact version of Divide and Conquer. The corresponding singular vectors are then computed by twisted factorization. The speed and accuracy of double Divide and Conquer are as well or even better than standard algorithms such as QR and Divide and Conquer. In addition, it is expected that double Divide and Conquer has great parallelism because each step is theoretically parallel and heavy communication is no required. However, any parallel model of double Divide and Conquer has not been studied yet. In this paper, policy of the parallelization is discussed. Then, a parallel implementation with MPI is tested on a distributed memory parallel computer. It successfully shows a high parallelism., Jun. 2006, II, 68, 888-894, 50
- Refereed, In Proceedings of International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA'06), Information Processing Society of Japan (IPSJ), Evaluation of a New Eigen Decomposition Algorithm for Symmetric Tridiagonal Matrices, TAKATA Masami; Hiroaki Tsuboi, This paper focuses on a new extension version of double Divide and Conquer (dDC) algorithm to eigen decomposition. Recently, dDC was proposed for singular value decomposition (SVD) of rectangular matrix. The dDC for SVD consists of two parts. One is Divide and Conquer (D〓C) for singular value and the other is twisted factorization for singular vector. The memory usage of dDC is smaller than that of D〓C. Both theoretical and running time are also shorter than those of D〓C. In this paper, a new dDC for eigen decomposition is proposed. A shift of origin is introduced into our dDC. By some numerical tests, dDC is evaluated with respect to running time and accuracy., Jun. 2006, II, 68, 832-838, 18
- Refereed, IPSJ, ACS14, 高速特異値分解のためのライブラリ開発, TAKATA Masami; Masami Takata, May 2006, 47, SIG7(ACS14), 91-104
- Refereed, IPSJ, ACS14, 分割統治法とツイスト分解による新しい特異値分解アルゴリズム, TAKATA Masami, May 2006, 47, SIG7(ACS14), 81-90
- Refereed, 2重対角行列の特異値分解におけるツイスト分解を用いた特異ベクトル計算法の改良, TAKATA Masami; Masami Takata, May 2006, 2007, 1, 103-110
- Refereed, PROCEEDINGS OF THE IASTED INTERNATIONAL CONFERENCE ON ADVANCES IN COMPUTER SCIENCE AND TECHNOLOGY, ACTA PRESS ANAHEIM, A new singular value decomposition algorithm suited to parallelization and preliminary results, Taro Konda; Masami Takata; Masashi Iwasaki; Yoshimasa Nakamura, This paper proposes a new singular value decomposition algorithm which can be fully parallelized. I-SVD algorithm was recently proposed using the theory of integrable systems. It computes singular value decompositions much faster than standard algorithms such as QR and Divide and Conquer(D&C), and at the same accuracy level. However, we show that the parallelism of I-SVD is limited to singular vector computation only because it shows seriality in the case of singular value computation. Our concern is a fully parallelizable algorithm whose serial version is as fast and accurate as I-SVD. Compared to the original D&C, where most of the running time is consumed for vector updating during singular vector computation, our new algorithm first computes singular values by the "compact" D&C without computing singular vectors. Thus, the compact D&C is wholly faster than the original one. The corresponding singular vectors are then computed by twisted factorization. The algorithm has great parallelism because each step can be executed parallelly. Our new algorithm is numerically tested on some SVD computations. It is as fast as I-SVD and even much faster than the standard algorithms. Also, its accuracy is as good as that of the others.
505-033 in display pdf, 2006, 79, +, International conference proceedings - Refereed, 分割統治法とツイスト分解による新しい特異値分解アルゴリズム, TAKATA Masami, Jan. 2006, 2006, 1, 105-112
- Refereed, 2重対角行列のための高速特異値分解の開発, TAKATA Masami, Jan. 2006, 2006, 1, 27
- Refereed, PROCEEDINGS OF THE IASTED INTERNATIONAL CONFERENCE ON PARALLEL AND DISTRIBUTED COMPUTING AND NETWORKS, ACTA PRESS, Performance of a new scheme for bidiagonal singular value decomposition of large scale, M Takata; K Kimura; M Iwasaki; Y Nakamura, To perform singular value decomposition (SVD) of matrices with high accuracy and high-speed, we developed a library by using an integrable system called the discrete Lotka-Volterra (dLV) system. The most well-known routine for the SVD is DBDSQR provided in LAPACK, which is based on the QRs (QR with shift) algorithm. However, DBDSQR is slow and does not perform well for the case where only a few singular vectors are desirable. Recently a new SVD scheme named Integrable-SVD (I-SVD) was developed. The execution time for the I-SVD scheme based on the dLV system and transformation is less. In this paper, we implement and evaluate the I-SVD scheme. To examine its accuracy, we propose a method for making random upper bidiagonal matrices with desired singular values. The corresponding singular vectors are also accurately obtained. From the experimental results, we conclude that the singular vectors computed by the I-SVD scheme have adequate orthogonality, and the scheme also has high speed and accuracy for both the computed singular values and vectors., 2006, 304, +, International conference proceedings
- Refereed, IPSJ, ACS11, Implementation and its Evaluations of Routine \\for Computing Singular Values with High Accuracy, TAKATA Masami; Masami Takata, Aug. 2005, 46, SIG12(ACS11), 299-311
- Refereed, いくつかの CPU の推奨コンパイラにおける特異値計算ルーチンの実行時間の測定, TAKATA Masami, May 2005, 2005, 5, 212-213
- Refereed, Jan. 2005, HPCS2005, 25, 32
- Refereed, IPSJ, TOM11, The Possibility for Numerical Calculations with i-APPLI, TAKATA Masami; Masami Takata, Jan. 2005, 46, SIG2(TOM11), 44-55
- Refereed, ロトカ・ボルテラ系による特異値計算の実装と評価, TAKATA Masami, Jan. 2005, 2005, 25-32
- Refereed, PDPTA '05: Proceedings of the 2005 International Conference on Parallel and Distributed Processing Techniques and Applications, Vols 1-3, C S R E A PRESS, An evaluation of singular value computation by the discrete Lotka-Volterra system, M Takata; K Kimura; M Iwasaki; Y Nakamura, The mdLVs (modified discrete Lotka-Volterra with shift) scheme for computing singular values is evaluated. Convergence and stability of the mdLVs scheme are guaranteed. It is shown that numerical accuracy of the scheme is equal to or higher than that of the existing routines of LAPACK., 2005, II, 410, 416, International conference proceedings
- Refereed, PDPTA '04: PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON PARALLEL AND DISTRIBUTED PROCESSING TECHNIQUES AND APPLICATIONS, VOLS 1-3, C S R E A PRESS, A multi-objective genetic algorithm for program partitioning and data distribution using TVRG, M Takata; T Yamaguchi; C Watanabe; Y Nakamura; K Joe, We propose an algorithm that performs data distribution and parallelization simultaneously. The objectives of the simultaneous algorithm are to reduce the length of critical path and the total memory size. Regardless to say, memory usage for each processor must be balanced. To obtain an optimal solution, we first adopted a branch and bound method. Since the branch and bound method often fails in the case of a large task graph, we adopt a multi-objective genetic algorithm, that provides a near optimal solution. For effective simultaneous partitionings, we employ some edge sorting and ordering methods. The effectiveness of our simultaneous partitioning algorithms is shown by experimental results., 2004, I, 345, 351, International conference proceedings
- Refereed, NCC@i-APPLI : i アプリによる数値計算コンポーネントの構想, TAKATA Masami, Oct. 2003, 2003, 14, 45-52
- Refereed, IPSJ, ACS1, Parallelization and Evaluation of a Direct Numerical Simulation for a Turbulent Flow using Pseudo Spectral Method, TAKATA Masami; Masami Takata, May 2003, 44, SIG6(ACS1), 45-54
- Refereed, GA を用いたレイリー波分散曲線に基づく水平成層構造の推定, TAKATA Masami, Jan. 2003, 2003, 2, 229-231
- Refereed, i アプリを用いた分散 GA の実装, TAKATA Masami, Jan. 2003, 2003, 2, 251-258
- Refereed, 擬似スペクトル法を用いた乱流場の直接数値シミュレーションの並列化と性能評価, TAKATA Masami, Jan. 2003, 2003, 4, 101-108
- Refereed, In Proceedings of International Conference on Parallel and Distributed Processing Techniques and Applications, A Quantum Algorithm for Searching Web Communities, TAKATA Masami; Mayumi Oto, Jun. 2002, I, 260-266
- Refereed, In Proceedings of International Conference on Parallel and Distributed Processing Techniques and Applications, Accelerated Program Partitioning Algorithm - An Improvement of Girkar's Algorithm -, TAKATA Masami; Masami Takata, Jun. 2002, II, 699-705
- Refereed, The Proceedings of the 5th International Conference and Exhibition on High-Performance Computing in the Asia-Pacific Region, Effective Parallelization of a Turbulent Flow Simulation, TAKATA Masami; Masami Takata, Sep. 2001, CD-ROM Proceeding
- Refereed, In Proceedings of International Conference on Parallel and Distributed Processing Techniques and Applications, An Improvement of Program Partitioning Based Genetic Algorithm, TAKATA Masami; Masami Takata, Jun. 2000, I, 215-221
- Refereed, INNOVATIVE ARCHITECTURE FOR FUTURE GENERATION HIGH-PERFORMANCE PROCESSORS AND SYSTEMS, IEEE COMPUTER SOC, A heuristic approach to improve a branch and bound based program partitioning algorithm, M Takata; Y Kunieda; K Joe, In this paper we propose several heuristics that improve the branch and bound based program partitioning algorithm proposed by Girkar et. al., and evaluate the effectiveness by experiments. The heuristic depends heavily on the element order of edges of a given task graph. Therefore, it is necessary to sort the edges carefully to make effective use of the heuristic. Different sorting methods are investigated and experimentally evaluated. Approximate solutions that provide a sufficient practical partitioning were obtained using the accelerated heuristic, and execution times and error compared to the optimal solutions decreased considerably by sorting the edges of the task graph., 2000, 105, 114, International conference proceedings
- Refereed, Proceedings of the Innovative Architecture for Future Generation High-Performance Processors and Systems, IEEE Computer Society, A heuristic approach to improve a branch and bound based - Program partitioning algorithm, Masami Takata; Yoshitoshi Kunieda; Kazuki Joe, In this paper, we propose several heuristics that improve the branch and hound based program partitioning algorithm proposed by Girkar et. al, and evaluate the effectiveness by experiments. The heuristic depends heavily on the element order of edges of a given task graph. Therefore, it is necessary to sort the edges carefully to make effective use of the heuristic. Different sorting methods are investigated and experimentally evaluated. Approximate solutions that provide a sufficient practical partitioning were obtained using the accelerated heuristic, and execution times and error compared to the optimal solutions decreased considerably by sorting the edges of the task graph., 1999, 1999-, 105, 113, International conference proceedings, 10.1109/IWIA.1999.898848
MISC
- Not Refereed, The Impact of Web3.0 on Culture Creation, Kaori Tanaka; Miho Chiyonobu; Masami Takata, 15 Mar. 2025, 2025-MPS-152, 17, 1, 2, Summary national conference
- Not Refereed, Development of an Application to Support Aerobic Exercise, Natsu Kidoguchi; Miho Ciyonobu; Masami Takata, Dec. 2024, 2024-MPS-151, 10, 1, 4, Summary national conference
- Not Refereed, SIG Technical Reports are nonrefereed and hence may later appear in any journals, conferences, symposia, etc., Proposal of a Speech Bubble Placement Method Based on Object Maps, Mayu Kinugawa; Miho Chiyonobu; Masami Takata, 29 Aug. 2024, 2024-MPS-150, 5, 1, 4, Summary national conference
- Not Refereed, SIG Technical Reports are nonrefereed and hence may later appear in any journals, conferences, symposia, etc., Method for Improving Speech Recognition Rates for Elderly Speakers Using Transfer Learning, Mayu Kamada; Miho Chiyonobu; Masami Takata, 29 Aug. 2024, 2024-MPS-150, 4, 1, 5, Summary national conference
- Not Refereed, SIG Technical Reports are nonrefereed and hence may later appear in any journals, conferences, symposia, etc., Proposed implementation of the OQDS Method for Principal Component Analysis, Miho Chiyonobu; Masami Takata; Kinji Kimura; Yoshimasa Nakamura, 29 Aug. 2024, 2024-MPS-150, 3, 1, 6, Summary national conference
- Refereed, 15 Jul. 2024, 2024-MPS-149, 14, 1, 4
- Refereed, 15 Jul. 2024, 2024-MPS-149, 13, 1, 4
- Refereed, 15 Jul. 2024, 2024-MPS-149, 4, 1, 4
- Refereed, 15 Jul. 2024, 2024-MPS-149, 3, 1, 4
- Not Refereed, SIG Technical Reports are nonrefereed and hence may later appear in any journals, conferences, symposia, etc., Proposal for automatic thumbnail generation method, Marika Tsuji; Miho Chiyonobu; Masami Takata, 22 May 2024, 2024-DCC-37, 5, 1, 7, Summary national conference
- Not Refereed, Dec. 2023, 2023-MPS-146, 16, 1, 6, Summary national conference
- Not Refereed, Proposal for Computing Precise Lower Bounds on Smallest Singular Value for Band Matrix, Sep. 2023, 2023-MPS-145, 3, 1, 6, Summary national conference
- Not Refereed, Sep. 2023, 106, 106, Summary national conference
- Not Refereed, Sep. 2023, 105, 105, Summary national conference
- Refereed, Data Augmentation Method for Improving Blurred Image Recognition Rate, Jul. 2023, 2023-MPS-144, 15, 1, 4
- Refereed, Jul. 2023, 2023-MPS-144, 11, 1, 3
- Refereed, Iterative Censoring and Highly Efficient Machine Learning with Condition Number in LSMR Method, Jul. 2023, 2023-MPS-144, 10, 1, 4
- Refereed, Proposed preprocessing for high-performance complex singular value decomposition, Jul. 2023, 2023-MPS-144, 9, 1, 4
- Not Refereed, From the Condition L-curve to Machine Learning, Jul. 2023, 69, 72, Summary national conference
- Not Refereed, Proposal on how to reduce the number of data when implementing deep learning of stop conditions for the LSMR method, 02 Mar. 2023, 2023-MPS-142, 31, 1, 6, Summary national conference
- Not Refereed, Early-Modern Character Recognition with Generated Fonts, Yuki Takemoto; Yu Ishikawa; Masami Takata; Kazuki Joe, 02 Mar. 2023, 2023-MPS-142, 28, 1, 6, Summary national conference
- Not Refereed, Layout Analysis for Early-Modern Japanese Printed Book Using Image Pyramid and CRAFT, Sayaka Iida; Yuki Takemoto; Yu Ishikawa; Masami Takata; Kazuki Joe, 05 Dec. 2022, 2022-MPS-141, 8, 1, 6, Summary national conference
- Not Refereed, Error detection for modern book character recognition, Haruna Fukumoto; Yuki Takemoto; Yu Ishikawa; Masami Takata; Kazuki Joe, 05 Dec. 2022, 2022-MPS-141, 21, 1, 6, Summary national conference
- Not Refereed, Effects of Data Augmentation to Improve Recognition Rates for Crack Detection, Shiori Ishikawa; Miho Chiyonobu; Sayaka Iida; Masami Takata, 07 Sep. 2022, 2022-MPS-140, 3, 1, 6, Summary national conference
- Not Refereed, Proposal of Origami Support Tool using AR, Yukino Kato; Masami Takata, Mar. 2022, 2022-MPS-137, 15, 1, 6, Summary national conference
- Not Refereed, A CRAFT-Based Layout Analysis Method for Early-Modern Japanese Books, Mar. 2022, 2022-MPS-137, 11, 1, 6, Summary national conference
- Not Refereed, A Study of an Essential Oil Blending Method Using Q-learning, Moeka Sakamoto; Masami Takata, Dec. 2021, 2021-MPS-136, 16, 1, 4, Summary national conference
- Not Refereed, Dec. 2021, 2021-MPS-136, 10, 1, 6, Summary national conference
- Not Refereed, Examination of Mutual Translation between Modern Literary Style and Modern Colloquial Style using Unsupervised Learning, Chikako Fujii; Yuki Takemoto; Yu Ishikawa; Masami Takata; Kazuki Joe, Dec. 2021, 2021-MPS-136, 9, 1, 6, Summary national conference
- Not Refereed, Mar. 2021, Summary national conference
- Not Refereed, Feb. 2021, 2020-MPS-132, 4, 1, 6
- Dec. 2020, 2020-MPS-131, 16, 1, 6
- Not Refereed, Dec. 2020, 2020-MPS-131, 13, 1, 6
- Not Refereed, Feb. 2020, 2020-MPS-127, 19, 1, 6
- Not Refereed, Dec. 2019, 2019-MPS-126, 6, 1, 6
- 2019, 35th
- Not Refereed, 近代文語体と現代口語体の自動翻訳への試み, TAKATA Masami, Dec. 2018, 2018-MPS-121, 18, 1-6
- Not Refereed, 帝国議会会議録におけるレイアウト解析手法の比較, TAKATA Masami, Sep. 2018, 2018-MPS-120, 13, 1-6
- Not Refereed, シフト付きCholesky QR分解を用いた特異値分解の高速化, TAKATA Masami, Dec. 2017, 2017-MPS-116, 1, 1-6
- Not Refereed, 透過型HMD上での日本語文字切り出しの一手法, TAKATA Masami, Feb. 2017, 2017-MPS-112, 7, 1-6
- Not Refereed, 計測位置のずれを考慮した脳波個人認証の検証, TAKATA Masami, Feb. 2017, 2017-MPS-112, 8, 1-6
- Not Refereed, 近代書籍用フォントの自動生成, TAKATA Masami, Feb. 2017, 2017-MPS-112, 15, 1-6
- Not Refereed, DCGANを用いたイラスト画像生成の一手法, TAKATA Masami, Feb. 2017, 2017-MPS-112, 16, 1-6
- 2017, 33rd
- Not Refereed, 調剤薬局用薬剤売買のためのレコメンドシステム, TAKATA Masami, Dec. 2016, 2016-MPS-111, 7, 1-5
- Not Refereed, Myoを用いた腕の表面筋電位解析, TAKATA Masami, Sep. 2016, 2016-MPS-110, 9, 1-6
- Not Refereed, 遺伝的アルゴリズムを用いたQWOPの運動学習の一手法, TAKATA Masami, Sep. 2016, 2016-MPS-110, 10, 1-6
- Not Refereed, Deep Learningを用いたSNSからの知識抽出の一手法, TAKATA Masami, Mar. 2016, 2016-MPS-107, 1, 1-6
- Not Refereed, 脳波計測位置のずれが脳波個人認証に与える影響, TAKATA Masami, Sep. 2015, 2015-MPS-105, 9, 1-6
- Not Refereed, 近代書籍用OCRのための学習用特定フォントセットの自動生成手法, TAKATA Masami, Sep. 2015, 2015-MPS-105, 10, 1-6
- Not Refereed, 上肢神経系セルフチェックのためのHapLogを用いた評価システムの試作, TAKATA Masami, Sep. 2015, 2015-MPS-105, 14, 1-6
- A Stress Indexing Method by Respiratory Variability Analysis, 23 Jun. 2015, 115, 112, 231, 236
- A Clustering Method for Gene Expression Data Based or COG Classification, 23 Jun. 2015, 115, 112, 237, 242
- A Stress Indexing Method by Respiratory Variability Analysis, 23 Jun. 2015, 115, 111, 115, 120
- A Clustering Method for Gene Expression Data Based or COG Classification, 23 Jun. 2015, 115, 111, 121, 126
- Biometrics Authentication Using the Amplitude and the Area of Heartbeat Waveform, Jun. 2015, 39, 21, 11, 16
- Not Refereed, 呼吸変動解析によるストレス指標の提案, TAKATA Masami, Jun. 2015, 2015-MPS-103, 22, 1-6
- Not Refereed, COG分類を考慮した遺伝子発現プロファイルデータのクラスタリング手法, TAKATA Masami, Jun. 2015, 2015-MPS-103, 23, 1-6
- Not Refereed, 心拍波形の振幅と面積を用いた個人認証の提案, TAKATA Masami, Jun. 2015, 115, 117, 11-16
- Sign Language Recognition using Leap Motion Controller, 24 Feb. 2015, 2015, 8, 1, 6
- Not Refereed, Leap Motion Controllerを用いた指文字認識, TAKATA Masami, Feb. 2015, 2015-MPS-102, 8, 1-6
- Not Refereed, ニューラルネットワークを用いた心拍データの学習と利用, TAKATA Masami, Feb. 2015, 2015-MPS-102, 17, 1-6
- IPSJ SIG technical reports, Information Processing Society of Japan (IPSJ), Development of real time respiration monitoring system by using standing wave radars, Sudden infant death syndrome is a disease that a well-looking baby of up to one year stops his/her breathing without any reason, and comes to die. To prevent babies from this disease, some kind of systems that check baby's breathing circulating system to detect abnormal foretaste is required. Such error detection for baby's breathing circulating can be realized by standing wave radars, which measures the distance of target objects precisely. Measuring series of displacements to the breast of a baby by using standing wave radars. we apply Fourier transform analysis for the frequency band of baby's breathing, and we present the development of respiration monitoring system to observe of baby's breathing., 19 Jan. 2015, 2015, 1, 1, 6
- IPSJ SIG Notes, Information Processing Society of Japan (IPSJ), Development of real time respiration monitoring system by using standing wave radars, Sudden infant death syndrome is a disease that a well-looking baby of up to one year stops his/her breathing without any reason, and comes to die. To prevent babies from this disease, some kind of systems that check baby's breathing circulating system to detect abnormal foretaste is required. Such error detection for baby's breathing circulating can be realized by standing wave radars, which measures the distance of target objects precisely. Measuring series of displacements to the breast of a baby by using standing wave radars. we apply Fourier transform analysis for the frequency band of baby's breathing, and we present the development of respiration monitoring system to observe of baby's breathing., 19 Jan. 2015, 2015, 1, 1, 6
- 2015, 31, 264, 265
- IPSJ SIG Notes, Information Processing Society of Japan (IPSJ), Partial recognition of three-dimensional object In volume data, Eri Nagao; Yu Ishikawa; Masami Takata; Joe Kazuki, In this paper, we propose a method of partial recognition for three dimensional object in volume data. In hospitals, MRI (magnetic resonance imaging) and CT (Computed Tomography), which take photos as slice images, are often adapted to obtain information in inner of body. By constructing slice images to a three-dimensional object, users understand information of slice images intuitively. By an automatic partial recognition, location of pathology can be clear speedy. In the proposed method, slice images are transformed into volume data and a partial recognition is performed using LVQ (Learning Vector Quantization) with the three-dimentional SIFT features., 02 Dec. 2014, 2014, 9, 1, 6
- Not Refereed, ボリュームデータにおける3次元物体の部分認識, TAKATA Masami, Dec. 2014, 2014-MPS-101, 9, 1-6
- Not Refereed, 機械学習を用いた問題解答のための推論システムの開発, TAKATA Masami, Dec. 2014, 2014-MPS-101, 10, 1-6
- Not Refereed, 表構造を用いた漢方薬オントロジー自動構築手法の提案, TAKATA Masami, Nov. 2014, SIG-SWO-A1402-06
- Not Refereed, プリシェイピングを用いたVRユーザのモーション認識, TAKATA Masami, Sep. 2014, CD, 419-422
- Not Refereed, VR用体感アミューズメントアプリの開発, TAKATA Masami, Sep. 2014, CD, 576-579
- The Institute of Electronics, Information and Communication Engineers, Ruby Removal Filters by Genetic Programming using the classification of printing type data for Early-Modern Japanese Printed Books, In National Diet Library, books which are possessed in library as "the digital library from meiji era" are open to the public on Web. Since these are shown as image data and cannot search using document contents, an automatic text conversion is needed. There is a major obstacle to text conversion. It is ruby. Ruby can not be removed in the histogram method. Therefore, we have proposed a ruby removal method for early-modern Japanese printed books. However, since the proposed method is based on the external information added to the books, the feasibility is low. In this paper, we propose a method to remove the ruby automatically from early-modern Japanese printed books by generating ruby removal formula in Genetic Programming using the training data was based on the data of book image., 25 Jun. 2014, 114, 105, 117, 122
- Not Refereed, 活字データの分類を用いた進化計算による近代書籍からのルビ除去, TAKATA Masami, Jun. 2014, 2014-MPS-98, 20, 1-6
- Not Refereed, Development of a Physical Activity Recommendation System for Smart Health-Care, TAKATA Masami, Mar. 2014, SIG-SWO-A1303-02, 1-8
- Not Refereed, An Automatic Ontology Concepts Extension Method, TAKATA Masami, Mar. 2014, SIG-SWO-A1303-05, 1-8
- 24 Feb. 2014, 2014, 7, 1, 10
- Not Refereed, IPSJ SIG Notes, Information Processing Society of Japan (IPSJ), Modeling of physical activity including Non-Exercise Activity Thermogenesis using plural triaxial accelerometers, TAKATA Masami, The metabolism by physical activity of low exercise intensity in daily life (Non-Exercise Activity Thermogenesis: NEAT), account for 20-30% of total energy expenditure of the people, its individual difference is large. Therefore, we propose the modeling for estimating energy expenditure of any physical activities including not only exercise but also NEAT. Energy expenditure is in proportion to body weight. Accordingly we model by limiting the energy expenditure of the body having a large specific gravity in the whole body. To capture more accurate movement of the body, we use three-axis acceleration data of the three points, right thoracic and left thoracic and lumbar. We propose a model of energy expenditure by physical activity including NEAT from momentum, kinetic energy, impulse, and work., Feb. 2014, 2014-MPS-97, 21, 1-6, 6
- Not Refereed, IPSJ SIG Notes, Information Processing Society of Japan (IPSJ), 多フォント漢字認識手法における各カテゴリと必要教師データ数の分析, TAKATA Masami, Since the fonts of the Kanji character in early-modern Japanese printed books dating from the Meiji era to the first half of Showa era (AD1868-1945) has the greatly different feature from the standard fonts determined by JIS. We have been proposed the multi-fonts Kanji character recognition method suitable for early-modern Japanese printed books. In this paper, the multi-fonts Kanji character recognition method is applied to 1000 kinds of Kanji characters, and the relationship the between the feature of Kanji characters and the numbers of necessary training data is analyzed. In our proposed method, when Kanji characters are recognized with the PDC feature and SVM, the training data is needed. However, it was not analyzing about the relation between Kanji characters and the number of necessary training data. Therefore, the reration between the feature of Kanji characters and the number of necessary training data is analyzed using the feature value of Kanji characters by PDC vector and the change of recognition rate for each category of training data., Feb. 2014, 2014-MPS-97, 10, 1-6, 6
- Not Refereed, IPSJ SIG Notes, Information Processing Society of Japan (IPSJ), オントロジーを用いた建造物のバリアフリー度判定, TAKATA Masami, In this research, we construct a 3D surface model, which is translated in information of standing wave radar. The standing wave radar can measure distance to an object without contact. In the information of the standing wave radar, an optimal combination algorithm is adopted. Then, once the three-dimensional information is transformed into the two-dimensional coordinates, a 3D surface model is constructed by using the Delaunay triangulation., Feb. 2014, 2014-MPS-97, 15, 1-6, 6
- Not Refereed, 定在波レーダを用いた距離画像の構築, TAKATA Masami, Feb. 2014, 2014-MPS-97, 19, 1-6
- Not Refereed, 脳波個人認証のための特徴抽出, TAKATA Masami, Feb. 2014, 2014-MPS-97, 20, 1-6
- Refereed, Proceedings of The 2014 International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA2014), Acceleration of numerical computation for positive roots of polynomials by improved bounds, Kinji Kimura; Takuto Akiyama; Hiroyuki Ishigami; Masami Takata; Yoshimasa Nakamura, 2014, II, 201, 207, Summary international conference
- 31 Dec. 2013, 2014, 43, 43
- Not Refereed, 3次元形状データにおける色段差を利用した特徴抽出法の提案, TAKATA Masami, Nov. 2013, 2013-CG-153, 20, 1-6
- 23 Sep. 2013, 2013, 18, 1, 9
- Not Refereed, IPSJ SIG Notes, Information Processing Society of Japan (IPSJ), Graph500のHybrid解法に内在する局所性, TAKATA Masami, Graph500 is a benchmark suite for big data analysis and sparse matrix processing which receives attention in these years. Since the use of a bitmap to mark the visit of vertices and Beamer's Hybrid BFS algorithm to make a part of a sparse matrix be accessed are reported, we believe that such methods are to be a de facto standard. In this paper, from the viewpoint of reference locality, we analyze the memory access characteristics of pre-release version implemented with OpenMP and the two methods for the latest Graph500 reference code. As the results, we confirm that the number of memory accesses, a spatial locality metric of row index that shows performance degradation in the case of cache misses, and temporal locality (average working set sizes) that shows the resistance to cache misses, change drastically. We confirmed that the reduction rate of the number of memory accesses and temporal locality are accelerated in proportion to the target graph sizes. It means that the Graph500 with Hybrid method is another benchmark suite to measure the characteristics of optimized BFS implementation, while the conventional Graph500 represents most applications with sparse matrix vector multiplications that are not efficiently performed on conventional computer systems to require the improvement of computer systems. Furthermore, the hot spots against processing times do not include the functions to perform BFS, and we find it is no longer the benchmark for search speed practically. To investigate the essential meaning of the benchmarks, we propose appropriate and practical rules that do not damage it., Jul. 2013, 2013-HPC-140, 27, 1-8, 8
- Not Refereed, Scatter/Gatherをどこで行なうべきか？－低電力で高スループットなランダムアクセスのために－, TAKATA Masami, Mar. 2013, 2013-ARC-204, 4, 1-7, 7
- Not Refereed, 疎行列キャッシュ適合性に基づくGraph500 ベンチマークの特性解析, TAKATA Masami, Feb. 2013, 2013-HPC-138, 30, 1-7, 7
- 2013, 29, 406, 407
- Not Refereed, 時間的局所性を考慮した疎行列のキャッシュ適合性, TAKATA Masami, Dec. 2012, 2012-HPC-137, 28, 1-8
- Not Refereed, LF/HFを用いた時空間ストレス指標の提案, TAKATA Masami, Dec. 2012, 2012-MPS-91, 2, 1-6
- Not Refereed, 遺伝的プログラミングを用いた近代書籍からのルビ除去, TAKATA Masami, Dec. 2012, 2012-MPS-91, 17, 1-6
- Not Refereed, 定在波レーダを用いた呼吸モニタリングシステムの開発, TAKATA Masami, Dec. 2012, 2012-MPS-91, 19, 1-6
- Not Refereed, 書籍オントロジーのための推論部の開発, TAKATA Masami, Dec. 2012, 2012-MPS-91, 32, 1-6
- Not Refereed, α波構成要素の切出しと解析, TAKATA Masami, Dec. 2012, 2012-MPS-91, 34, 1-6
- Not Refereed, グラフ解析ワークロードのキャッシュ適合性, TAKATA Masami, Oct. 2012, 112, 237, 66-72
- The Kanji character recognition evalution for the modern book of the same pablisher, 12 Sep. 2012, 2012, 26, 1, 6
- Not Refereed, 視覚障害者のための墨字学習支援システムの開発と評価, TAKATA Masami, Sep. 2012, 2012-MPS-90, 1, 1-6
- Not Refereed, 古典油彩画グレーズ技法シミュレーションの高速化, TAKATA Masami, Sep. 2012, 2012-MPS-90, 7, 1-6, 6
- Not Refereed, 同一出版者の近代書籍に対する漢字認識評価, TAKATA Masami, Sep. 2012, 2012-MPS-90, 25, 1-6
- Not Refereed, 疎行列のキャッシュへの適合性分類に関する予備評価, TAKATA Masami, Jul. 2012, 2012-HPC-135, 17, 1-7
- Not Refereed, 近代デジタルライブラリーの文字切り出しにおける実際的手法, TAKATA Masami, Feb. 2012, 2012-MPS-87, 34, 1-6
- Not Refereed, ARを用いた空間認識能力向上のための学習方法, TAKATA Masami, Feb. 2012, 2012-MPS-87, 33, 1-6
- Not Refereed, 5TH BIOMEDICAL ENGINEERING INTERNATIONAL CONFERENCE (BMEICON 2012), IEEE, Constitution and Phase Analysis of Alpha Waves, Yu Ishikawa; Masami Takata; Kazuki Joe, 2012, 98, 98, Summary international conference
- Not Refereed, Enobioを用いたα波形状の推定, TAKATA Masami, Dec. 2011, 2011-MPS-86, 27, 1-6
- Not Refereed, 未病の認識・改善に有効なストレスオントロジーの設計, TAKATA Masami, Dec. 2011, 2011-MPS-86, 26, 1-6
- Not Refereed, MKLによる食事画像認識の追試, TAKATA Masami, Dec. 2011, 2011-MPS-86, 17, 1-6
- Not Refereed, 異なるプラットフォームで効果的な3Dモデルを表示するためのポリゴンリダクションの方法, TAKATA Masami, Dec. 2011, 2011-MPS-86, 16, 1-6
- Not Refereed, 不規則型応用を加速するメモリアクセラレータ-Exa FLOPSマシンの文脈から, TAKATA Masami, Nov. 2011, 2011-HPC-132, 14, 1-8
- Not Refereed, e-口コミを活用したe-learning教材の開発とその評価, TAKATA Masami, Sep. 2011, 2011-MPS-85, 27, 1-6
- Aug. 2011, 27, 150, 153
- Not Refereed, メモリアクセラレータで強化したGPUのCG法による評価, TAKATA Masami, Jul. 2011, 2011-HPC-130, 15, 1-10
- Relaxing the Dependency of Matrix Shape on the Performance of Sparse Matrix Vector Product Using a GPU and an Extended Memory, 08 Mar. 2011, 2011, 11, 1, 8
- Not Refereed, データ通信時間を隠蔽したGPGPUによる粒子ベースボリュームレンダリングの高速化, TAKATA Masami, Mar. 2011, 2011-MPS-82, 22, 1-6
- Not Refereed, GPUを用いた複数顔検出の高速化に関する一手法, TAKATA Masami, Mar. 2011, 2011-MPS-82, 21, 1-6
- Not Refereed, SVMに基づく多フォント漢字認識手法の評価, TAKATA Masami, Mar. 2011, 2011-MPS-82, 14, 1-6
- 2011, 27, 258, 259
- Not Refereed, 近代デジタルライブラリーテキスト化支援のためのポータルサイトの設計, TAKATA Masami, Dec. 2010, 2010-MPS-81, 35, 1-6
- Not Refereed, CUDAに適用したループ再構築手法の評価, TAKATA Masami, Sep. 2010, 2010-MPS-80, 6, 1-6
- Aug. 2010, 26, 170, 173
- Evaluation of Loop Transformation methods with CUDA, HATA NORIKO; TAKATA MASAMI; JOE KAZUKI, 05 Jul. 2010, 2010, 10, 1, 6
- Not Refereed, 機能メモリとGPUのPCI express接続によるヘテロ環境における超大規模疎行列ベクトル積の性能予測, TAKATA Masami, Jul. 2010, 2010-HPC-126, 20, 1-9, 9
- Not Refereed, タンパク質立体構造の動きに着目した時系列解析, TAKATA Masami, Mar. 2010, 2010-BIO-20, 5, 1-6
- Not Refereed, 反射を考慮した日照量計算手法の評価, TAKATA Masami, Mar. 2010, 2010-MPS-77, 36, 1-6
- Not Refereed, 収集方法の異なるウェブアーカイブの相互利用, TAKATA Masami, Mar. 2010, 2010-MPS-77, 32, 1-6
- Not Refereed, リアルタイムステレオQueryballの開発, TAKATA Masami, Mar. 2010, 2010-MPS-77, 31, 1-6
- Not Refereed, ビデオシーケンスを利用したVR環境マッピング用テクスチャ及び空間の生成, TAKATA Masami, Mar. 2010, 2010-MPS-77, 26, 1-6
- Refereed, Proceedings of The 2010 International Conference on Parallel and Distributed Processing Techniques and Applications(PDPTA2010), Vol.II, 2010, pp.619–625, Generating algorithms for matrices with large condition number to evaluate singular value decomposition, Masami Takata; Kinji Kimura; Yoshimasa Nakamura, 2010, 2010, 1, 1, 6
- Not Refereed, 機能メモリとCOTSのPCI express接続によるヘテロ環境向けボリュームレンダリングの設計, TAKATA Masami, Nov. 2009, 2009-HPC-123, 1, 1-6, 6
- Not Refereed, 対話的実時間遠隔可視化システムの構築, TAKATA Masami, Sep. 2009, 2009-MPS-75, 19, 1-6
- Aug. 2009, 2009年度, 2, 1, 6
- Not Refereed, 視覚特性(オクリュージョン効果)を利用した教育への試み, TAKATA Masami, Aug. 2009, 25, 156-159, 159
- Not Refereed, ランダムアクセス型応用のためのPCI express越しに機能メモリをアクセスするアーキテクチャ, TAKATA Masami, Jul. 2009, 2009-HPC-121, 25, 1-8, 8
- Not Refereed, 情報処理学会研究報告, タンパク質立体構造における時系列特徴抽出, TAKATA Masami, Mar. 2009, 2009, 19, 97-100
- Not Refereed, 近代書籍に特化した多フォント活字認識法, TAKATA Masami, Mar. 2009, 2009, 19, 205-208
- Not Refereed, 地震短期予測研究のための地電流解析ポータルの開発, TAKATA Masami, Mar. 2009, 2009, 19, 209-212
- Not Refereed, 情報処理学会研究報告, SVMを用いた生体分子への金属結合部位予測手法の提案, TAKATA Masami, Mar. 2009, 2009, 19, 213-216
- Not Refereed, 2009, -
- Not Refereed, Flashを用いたWebアルバムの提案と設計, TAKATA Masami, Dec. 2008, 2008, 126, 1-4
- Not Refereed, 多目的に衛星データを利用するためのコンテンツ開発環境, TAKATA Masami, Dec. 2008, 2008, 126, 5-8
- Not Refereed, 芝生用塗料の劣化モデルの構築, TAKATA Masami, Dec. 2008, 2008, 126, 17-20
- Not Refereed, Webアーカイブにおける差分収集に用いる更新間隔推定手法の開発とその評価, TAKATA Masami, Dec. 2008, 2008, 126, 41-44
- Not Refereed, 反射を考慮した日照量計算の一手法, TAKATA Masami, Dec. 2008, 2008, 126, 45-48
- RIMS Kokyuroku, Kyoto University, Recent Developments of the mdLVs Algorithm for Singular Values and the I-SVD Algorithm for Singular Value Decomposition (Fast Algorithms in Computational Fluids : theory and applications), Nakamura Yoshimasa; Iwasaki Masashi; Kimura Kinji; Takata Masami, Jun. 2008, 1606, 87, 104
- Not Refereed, 書字運動の訓練支援ソフトウェアの開発, TAKATA Masami, May 2008, 108, 66, 79-83
- Not Refereed, IPSJ SIG Notes, Information Processing Society of Japan (IPSJ), E-Cell Systemを用いた酵母菌のストレス応答MAPK経路のモデル構築, TAKATA Masami, It is supposed that yeasts with alcoholic tolerance are suitable to generate high density alcohol in the process of Nippon Shuzo Brewery. Actually, a lot of compensation including the yeast extinction though various experiments are conducted to discover such yeasts. We try to model the response mechanism of yeast cells to alcohol by computer simulation to reduce such compensation. It pays attention to the relation between alcoholic tolerance and yeast cell wall. In this paper, we model a partial cell wall synthesis Pkc1-MAPK pathway using the E-Cell System., Mar. 2008, 2008, 17, 1-4, 4
- Not Refereed, IPSJ SIG Notes, Information Processing Society of Japan (IPSJ), リアルタイムQueryballの開発に向けて, TAKATA Masami, Queryball is a tool to understand objects in three-dimensional space. By overlapping a translucent globe with 3D object, it can quiry to the part where the object and the globe come in succession. It can change the display method with visually checking according to various directions. However, the display speed the volume rendering of Queryball to the present stage slows the large size of the object data, and is not for practical use. Therefore, performance improvement by applying GPGPU to the volume rendering part in real time is necessary., Mar. 2008, 2008, 17, 5-8, 8
- Not Refereed, GPを用いた指向性フィルタの生成と評価, TAKATA Masami, Mar. 2008, 2008, 17, 21-24
- Not Refereed, INTERNATIONAL CONFERENCE ON INFORMATICS EDUCATION AND RESEARCH FOR KNOWLEDGE-CIRCULATING SOCIETY, PROCEEDINGS, IEEE COMPUTER SOC, Application of the Kato-Temple inequality for eigenvalues of symmetric matrices to numerical algorithms with shift for singular values, Kinji Kimura; Masami Takata; Masashi Iwasaki; Yoshimasa Nakamura, The Kato-Temple inequality for eigenvalues of symmetric matrices gives a lower bound of the minimal eigenvalue lambda(m). Let A be a symmetric positive definite tridiagonal matrix defined by A = B-T B, where B is bidiagonal. Then the so-called Kato-Temple bound gives a lower- bound of the minimal singular value sigma(m) of B. In this paper we discuss how to apply the Kato-Temple inequality to shift of origin which appears in the mdLVs algorithm, for example, for computing all singular values of B. To make use of the Kato-Temple inequality a Rayleigh quotient for the matrix A = B-T B and a right endpoint of interval where lambda(m) = sigma(2)(m) belongs are necessary. Then it is shown that the execution time of mdLVs with the standard shifts can be shorten by a possible choice of the generalized Newton bound or the Kato-Temple bound., 2008, 113, +, 10.1109/ICKS.2008.20
- Not Refereed, 特定ユーザのための嗜好分析パターン抽出の一手法, TAKATA Masami, Dec. 2007, 2007, 128, 61-64
- Not Refereed, IPSJ SIG technical reports, Information Processing Society of Japan (IPSJ), 複数Webページの重要文抽出および直感的理解を支援するためのGUIの開発, TAKATA Masami, Lately, Web space has been one of the most important resources for information exploration. However, users are sometimes confused because of various information floods in the Web space. In this paper, we introduce a method which extracts important sentences and keywords from plural Web documents provided from search results to acquire necessary information more effectively. Furthermore, we developed a GUI which supports visually easy and intuitive understanding for the users. Our method with the GUI reduces users' burden for web exploration drastically., Dec. 2007, 2007, 128, 81-84, 84
- Not Refereed, 3Dスキャナのための自動テクスチャマッピング手法, TAKATA Masami, Dec. 2007, 2007, 128, 85-88
- Not Refereed, リアルタイムアナグリフ動画像生成, TAKATA Masami, Dec. 2007, 2007, 128, 89-92, 92
- Not Refereed, E-cell systemを用いた酵母菌のグルカン合成に関するモデル構築, TAKATA Masami, Dec. 2007, 2007, 128, 113-120
- Not Refereed, IPSJ SIG technical reports, Information Processing Society of Japan (IPSJ), 地球流体科学研究用のポータルGfdnaviへの3次元可視化機能の組み込み, TAKATA Masami, In recent years, visualization technology is essential for various scientific research. Especially, Simulation or measurement results are used as forms of visualization results to be well analyzed. In this paper, we add 3D visualization functions to Gfdnavi with outputting visualization results to client-sides through a remote X-window as well as the performance improvement with GPGPU., Dec. 2007, 2007, 128, 163-167, 166
- Not Refereed, 仮想空間用入力デバイスとしてのWiiリモコンの利用, TAKATA Masami, Oct. 2007, 19-22
- Not Refereed, Boid法の拡張による捕食行動の表現, TAKATA Masami, Oct. 2007, 23-26
- Not Refereed, ブートストラップ法を用いたポートフォリオ分析の適用例, TAKATA Masami, Oct. 2007, 185-186
- Not Refereed, 行列の特異値計算のmdLVsアルゴリズムにおける最近の進展, TAKATA Masami, Sep. 2007, 136-148
- Not Refereed, 特異値分解ライブラリのための最小特異値見積もり公式について, TAKATA Masami, Sep. 2007, 230-231, 231
- Not Refereed, ICA 適用による地電流データからの地震前駆的シグナル抽出結果に対する考察, TAKATA Masami, Sep. 2007, AS-2-4 (CD Proceeding).
- Not Refereed, 地震短期予測のための地電流解析Webシステムの構築, TAKATA Masami, Sep. 2007, AS-2-5 (CD Proceeding).
- Not Refereed, IPSJ SIG Notes, Information Processing Society of Japan (IPSJ), 食事と健康状態の関連を知るための一手法, TAKATA Masami, Recently, the size of memory storage is getting larger by advancement of science. As a result, information found in reservoir data has great variety and complexity. Therefore, it is necessary to get useful information from the data, which is hard to treat by the previous statistic analyses, or the database, which has variety of formats. To do so, the data mining is useful technique. This article tries to find the relationship between ingested food and condition of health without human prejudices and make new important indicator of controlling human health by employing data mining technique. Also the experiment is held to find the association-rules between food and condition of health., Mar. 2007, 2007, 19, 77-80, 80
- Not Refereed, IPSJ SIG Notes, Information Processing Society of Japan (IPSJ), ニンテンドーDSを用いた書字学習トレーニングソフトの開発, TAKATA Masami, We are newly developing training software for dyslexia disorder that is a type of learning disorder (LD). Person of dyslexia disorder has a trouble of the reading and writing of the character, and typical training methods are used to trace and to draw the character just on paper. The rehabilitation software for handwriting newly developed works on the portable type game machine, Nintendo DS. The repetition study on the game machine is easier than that of doing on paper. Moreover, it is an advantage that the learner can study with continued interest by adding the game. In this report, the content of the development background and the software developing now is described., Mar. 2007, 2007, 19, 81-84, 84
- Not Refereed, i アプリを用いた分子動力学ソフト GROMACS の構築, TAKATA Masami, Feb. 2007, 7-10
- IPSJ SIG Notes, Information Processing Society of Japan (IPSJ), A Method for Automatic Viewpoint Selection, NAKAGAWA MACHIKO; TAKATA MASAMI; JOE KAZUKI, Recently, three dimensional objects are widely used for visualization with various methods, as improvement of scientific techniques and visualization techniques. Since enormous and complicated data can be visualized, it is important to select a good viewpoint to get useful knowledge from the visualization results. However, there is no difinition for viewpoint selection, becouse good viewpoints are selected by the purpose and/or the target. In this paper, we improve an existing viewpoint selection model with plural properties., 21 Dec. 2006, 2006, 135, 49, 52
- Not Refereed, Auto View Selectionを実現する一手法, TAKATA Masami, Dec. 2006, 2006, 135, 49-51
- Not Refereed, 短期地震研究のための統合的なマルチデータベースの設計, TAKATA Masami, Dec. 2006, 2006, 135, 65-69, 68
- Not Refereed, 情報処理学会研究報告, 熱揺らぎを考慮したドッキングシステムの開発, TAKATA Masami, Dec. 2006, 2006, 135, 119-126
- Not Refereed, 情報処理学会研究報告, SVMを用いた金属イオン結合部位予測システムの開発, TAKATA Masami, Dec. 2006, 2006, 135, 157-164
- Not Refereed, 対称3重対角行列の固有値分解のためのダブル分割統治法－現状と課題－, TAKATA Masami, Sep. 2006, 314-315
- Not Refereed, アブストラクトを用いた論文分類システムの設計と実装, TAKATA Masami, Sep. 2006, 2006, 95, 33-36
- Not Refereed, IPSJ SIG Notes, Information Processing Society of Japan (IPSJ), 固有分解と特異値分解用ライブラリの性能評価のためのテスト行列に関する考察, TAKATA Masami, In order to evaluate the performance of numerical libraries computing eigendecomposition or singular value decomposition, we need to construct matrices of which we can compute accurate eigendecomposition or singular value decomposition. It is standard method that we compute eigendecomposition or singular value decomposition by using long precision, verify the accuracy, and compare approximate values with the accurate values. However, by using this method, we can not examine, considering purpose of use and special situation. Therefore, we introduce how to reconstruct the matrices from given solutions (eigen values/eigen vectors or singular values/singular vectors). Moreover, we introduce some special method which can be adapted to tests in larger dimension matrices., Jun. 2006, 2006, 63, 1-6, 6
- Not Refereed, IPSJ SIG Notes, Information Processing Society of Japan (IPSJ), 新しい特異値計算ルーチンによる対称3重対角行列の固有値計算の評価, TAKATA Masami, There are some approved methods for computing eigenvalues of symmetric tridiagonal matrices. In this paper the mdLVs scheme [7] for computing singular values of bidiagonal matrices is applied to the symmetric tridiagonal eigenvalue problem and is compared with the several routines of LAPACK as a new algorithm for eigenvalues. When one needs both accuracy and computational time, the mdLVs scheme is shown to be better for the positive-definite case., Mar. 2005, 2005, 19, 115-120, 120
- Not Refereed, ロトカ・ボルテラ系による特異値計算アルゴリズムの並列化, TAKATA Masami, Dec. 2004, 2004, 128, 13-18
- Not Refereed, IEICE technical report. Neurocomputing, The Institute of Electronics, Information and Communication Engineers, 誤り訂正符合のナイーブ平均場近似, TAKATA Masami, In the communication theory, solving error correcting code problem is a important subject. Recently, to reveal the charactericity of the erroro correcting code, several reseachers applied statistical-mechanical approach to this problem. In our research, we treated the error correcting code as the Bayes inference framework. We used MPM (Maximizer of the Posterior Marginals) inference, that is a kind of Bayes inference, and, moreover, applied naive mean field approximation. In the field of the artificial neural network, this approximation is applied for reduction of the computational cost by substitution of the stochastic binary units with the deteministic continuousu value units. However, there exsists few report of the performance of this approximation by quantitatively. Therefore, we evaluated the performance of this approximation by analysis and compare it with the compuater simulation., Mar. 2003, 102, 730, 143-148, 148
- Not Refereed, 乱流シミュレーションの並列化と評価, TAKATA Masami, Jan. 2001, 2001, 10, 1-6
- Not Refereed, ニューラルネットワークによるプログラム分割アルゴリズムの改善, TAKATA Masami, Feb. 2000, 2000, 16, 21-24
- IPSJ SIG Notes, Information Processing Society of Japan (IPSJ), A Program Partitioning Algorithm for Practical Approximate Solutions, SAITO Tetsuya; TAKATA Masami; JOE Kazuki; KUNIEDA Yoshitoshi; FUKUDA Akira, In this paper we propose an heuristics, without guarantees for the optimal solution, to obtain practical approximate solutions for the Girkar's branch-and-bound based program partitioning algorithm. Our heuristics, which focuses on a sequence of edges in a task graph, evaluates the maximum and average value of distances between edges. The values are used as an incumbent value for branching. Experimental results show our heuristics has an ability to obtain practical approximate solutions for the algorithm., 25 Nov. 1999, 1999, 96, 29, 32
- Not Refereed, 実用的な近似解を与えるプログラム分割アルゴリズム, TAKATA Masami, Nov. 1999, 99, 96, 29-32
- IPSJ SIG Notes, Information Processing Society of Japan (IPSJ), Estimating a Lower Bound for a Branch and Bound Based Program Partitioning Algorithm, TAKATA Masami; SAITO Tetsuya; NAKANISHI Tsuneo; JOE Kazuki, In this paper, Girkar's program partitioning algorithm for acyclic and task graphs is investigated, and a lower bound as an improvement is proposed to be validated by experimental results. In many cases, the algorithm restricted by the lower requires less execution time for search while obtaining optimal solutions. Although there were a few cases that solutions did not become optimal, the solutions were approximate because the errors to optimal solutions were small. The solutions to the task graphs which Girkar's algorithm could not be applied to for lack of memory could be obtained., 02 Aug. 1999, 1999, 67, 79, 84
- Not Refereed, 分枝限定法を用いたプログラム分割の下界に対する考察, TAKATA Masami, Aug. 1999, 99, 67, 79-84
Books etc
Presentations
- Kaori Tanaka; Miho Chiyonobu; Masami Takata, The Impact of Web3.0 on Culture Creation, Oral presentation, 22 Mar. 2025, 22 Mar. 2025 - 23 Mar. 2025
- Oral presentation, 12 Dec. 2024
- Natsu Kidoguchi; Miho Ciyonobu; Masami Takata, Development of an Application to Support Aerobic Exercise, Oral presentation, Dec. 2024, Dec. 2024 - Dec. 2024
- Oral presentation, 16 Sep. 2024
- Miho Chiyonobu; Masami Takata; Kinji Kimura; Yoshimasa Nakamura, Proposed implementation of the OQDS Method for Principal Component Analysis, Oral presentation, 05 Sep. 2024, 04 Sep. 2024 - 06 Sep. 2024
- Mayu Kamada; Miho Chiyonobu; Masami Takata, Method for Improving Speech Recognition Rates for Elderly Speakers Using Transfer Learning, Oral presentation, 05 Sep. 2024, 04 Sep. 2024 - 06 Sep. 2024
- Mayu Kinugawa; Miho Chiyonobu; Masami Takata, Proposal of a Speech Bubble Placement Method Based on Object Maps, Oral presentation, 05 Sep. 2024, 04 Sep. 2024 - 06 Sep. 2024
- Norie Koiso; Yuki Takemoto; Yu Ishikawa; Masami Takata, PDPTA'24- The 30th Int'l Conf on Parallel and Distributed Processing Techniques and Applications, Improved Method for Similar Music Recommendation Improved Early-modern Japanese Printed Character Recognition Rate with Generated Charactersusing Spotify API, Oral presentation, 22 Jul. 2024, 22 Jul. 2024 - 25 Jul. 2024
- Miho Chiyonobu; Masami Takata, PDPTA'24- The 30th Int'l Conf on Parallel and Distributed Processing Techniques and Applications, Improved Method for Similar Music Recommendation using Spotify API, Oral presentation, 22 Jul. 2024, 22 Jul. 2024 - 25 Jul. 2024
- Miho Chiyonobu; Masami Takata; Kinji Kimura; Yoshimasa Nakamura, PDPTA'24- The 30th Int'l Conf on Parallel and Distributed Processing Techniques and Applications, Fast Computation Method for Stopping Condition of Range Restricted GMRES Method, Oral presentation, 22 Jul. 2024, 22 Jul. 2024 - 25 Jul. 2024
- Miho Chiyonobu; Masami Takata; Kinji Kimura; Yoshimasa Nakamura, PDPTA'24- The 30th Int'l Conf on Parallel and Distributed Processing Techniques and Applications, Implementation of the OQDS Method for Principal Component Analysis, Oral presentation, 22 Jul. 2024, 22 Jul. 2024 - 25 Jul. 2024
- Oral presentation, 13 Jun. 2024
- Marika Tsuji; Miho Chiyonobu; Masami Takata, Proposal for automatic thumbnail generation method, Oral presentation, 29 May 2024, 29 May 2024 - 29 May 2024
- Oral presentation, Mar. 2024
- Oral presentation, Dec. 2023, Dec. 2023 - Dec. 2023
- Oral presentation, Dec. 2023
- Oral presentation, 02 Sep. 2023, Sep. 2023 - Sep. 2023
- Oral presentation, 02 Sep. 2023, Sep. 2023 - Sep. 2023
- Proposal for Computing Precise Lower Bounds on Smallest Singular Value for Band Matrix, Oral presentation, Sep. 2023, Sep. 2023 - Sep. 2023
- Oral presentation, Aug. 2023
- Miho Chiyonobu; Masami Takata; Jun Harayama; Kinji Kimura; Yoshimasa Nakamura, PDPTA'23- The 29th Int'l Conf on Parallel and Distributed Processing Techniques and Applications, Proposed Preprocessing for High-performance Complex Singular Value Decomposition, Oral presentation, 24 Jul. 2023, 24 Jul. 2023 - 28 Jul. 2023
- Natsu Kidoguchi; Miho Chiyonobu; Masami Takata, PDPTA'23- The 29th Int'l Conf on Parallel and Distributed Processing Techniques and Applications, Development of Stock Recommendation Method, Oral presentation, 24 Jul. 2023, 24 Jul. 2023 - 28 Jul. 2023
- Miho Chiyonobu; Itsuki Kuboi; Rika Tanaka; Shinya Ozawa; Yosuke Hosoda; Masami Takata; Kinji Kimura; Yoshimasa Nakamura, PDPTA'23- The 29th Int'l Conf on Parallel and Distributed Processing Techniques and Applications, Iterative Censoring and Highly Efficient Machine Learning with Condition Number in LSMR Method, Oral presentation, 24 Jul. 2023, 24 Jul. 2023 - 28 Jul. 2023
- Shiori Ishikawa; Miho Chiyonobu; Sayaka Iida; Masami Takata, PDPTA'23- The 29th Int'l Conf on Parallel and Distributed Processing Techniques and Applications, Data Augmentation Method for Improving Blurred Image Recognition Rate, Oral presentation, 24 Jul. 2023, 24 Jul. 2023 - 28 Jul. 2023
- From the Condition L-curve to Machine Learning, Oral presentation, Jul. 2023, Jul. 2023 - Jul. 2023
- Yuki Takemoto; Yu Ishikawa; Masami Takata; Kazuki Joe, Early-Modern Character Recognition with Generated Fonts, Oral presentation, 10 Mar. 2023, 09 Mar. 2023 - 10 Mar. 2023
- Proposal on how to reduce the number of data when implementing deep learning of stop conditions for the LSMR method, Oral presentation, 10 Mar. 2023, 09 Mar. 2023 - 10 Mar. 2023
- Haruna Fukumoto; Yuki Takemoto; Yu Ishikawa; Masami Takata; Kazuki Joe, Error detection for modern book character recognition, Oral presentation, 05 Dec. 2022, 05 Dec. 2022 - 05 Dec. 2022
- Sayaka Iida; Yuki Takemoto; Yu Ishikawa; Masami Takata; Kazuki Joe, Layout Analysis for Early-Modern Japanese Printed Book Using Image Pyramid and CRAFT, Oral presentation, 05 Dec. 2022, 05 Dec. 2022 - 05 Dec. 2022
- Shiori Ishikawa; Miho Chiyonobu; Sayaka Iida; Masami Takata, Effects of Data Augmentation to Improve Recognition Rates for Crack Detection, Oral presentation, 07 Sep. 2022, 07 Sep. 2022 - 07 Sep. 2022
- Oral presentation, 25 Aug. 2022, 25 Aug. 2022 - 26 Aug. 2022
- Itsuki Kuboi; Rika Tanaka; Shin-ya Ozawa; Yohsuke Hosoda; Masami Takata; Kinji Kimura; Yoshimasa Nakamura, International Conference on Parallel and Distributed Processing Techniques and Applications, On a Fast Computation of the Condition L-curve in the LSMR Method for Solving Ill-conditioned Problems using the DQDS Method, Oral presentation, 25 Jul. 2022, 25 Jul. 2022 - 28 Jul. 2022
- Shiori Higano; Reina Isono; Masami Takata, International Conference on Parallel and Distributed Processing Techniques and Applications, Proposal on Scheduling Method for Sightseeing with Unlimited Ride Tickets, Oral presentation, 25 Jul. 2022, 25 Jul. 2022 - 28 Jul. 2022
- Shigeka Nakajima; Masami Takata, International Conference on Parallel and Distributed Processing Techniques and Applications, Improved Fitness Functions for 3D Packing Problem, Oral presentation, 25 Jul. 2022, 25 Jul. 2022 - 28 Jul. 2022
- Norie Koiso; Yuki Takemoto; Sayaka Iida; Yu Ishikawa; Masami Takata; Kazuki Joe, International Conference on Parallel and Distributed Processing Techniques and Applications, Application of Deep Metric Learning to Early-modern Japanese Printed Character Recognition, Oral presentation, 25 Jul. 2022, 25 Jul. 2022 - 28 Jul. 2022
- Honoka Nishikawa; Yuki Takemoto; Sayaka Iida; Yu Ishikawa; Masami Takata; Kaoru Ueda; Kazuki Joe, International Conference on Parallel and Distributed Processing Techniques and Applications, Translating Early-modern Written Style into Current Colloquial Style in Hoji Shinbun, Oral presentation, 25 Jul. 2022, 25 Jul. 2022 - 28 Jul. 2022
- A CRAFT-Based Layout Analysis Method for Early-Modern Japanese Books, Mar. 2022, Mar. 2022 - Mar. 2022
- Yukino Kato; Masami Takata, Proposal of Origami Support Tool using AR, Mar. 2022, Mar. 2022 - Mar. 2022
- Chikako Fujii; Yuki Takemoto; Yu Ishikawa; Masami Takata; Kazuki Joe, Examination of Mutual Translation between Modern Literary Style and Modern Colloquial Style using Unsupervised Learning, Dec. 2021, Dec. 2021 - Dec. 2021
- Dec. 2021, Dec. 2021 - Dec. 2021
- Moeka Sakamoto; Masami Takata, A Study of an Essential Oil Blending Method Using Q-learning, Dec. 2021, Dec. 2021 - Dec. 2021
- Kyoka Nakano; Masami Takata, The 27th Int'l Conf on Parallel and Distributed Processing Techniques and Applications, Proposal of an Essential Oil Blending Method using Q-learning, 26 Jul. 2021, 26 Jul. 2021 - 29 Jul. 2021
- Takahiro Miyamae; Masami Takata; Kinji Kimura; Yoshimasa Nakamura, The 27th Int'l Conf on Parallel and Distributed Processing Techniques and Applications, Implementation of Singular Value Decomposition for Complex Matrices Using the Two-sided Jacobi Method, Oral presentation, 26 Jul. 2021, 26 Jul. 2021 - 29 Jul. 2021
- Yuki Takemoto; Yu Ishikawa; Masami Takata; Kazuki Joe, The 27th Int'l Conf on Parallel and Distributed Processing Techniques and Applications, Generating an Estimated Font Set for Early-Modern Japanese Printed Character Recognition, Oral presentation, 26 Jul. 2021, 26 Jul. 2021 - 29 Jul. 2021
- 20 Mar. 2021, 20 Mar. 2021 - 21 Mar. 2021
- Mar. 2021, Mar. 2021 - Mar. 2021
- Feb. 2021, Feb. 2021 - Feb. 2021
- Dec. 2020, Dec. 2020 - Dec. 2020
- Dec. 2020, Dec. 2020 - Dec. 2020
- Nanami Fujisaki; Yu Ishikawa; Masami Takata; Kazuki Joe, International Conference on Parallel and Distributed Processing Techniques and Applications, Crawling Low Appearance Frequency Characters Images for Early-Modern Japanese Printed Character Recognition, 27 Jul. 2020, 27 Jul. 2020 - 30 Jul. 2020
- Hiroki Tanaka; Taiki Kimura; Tetsuaki Matsunawa; Shoji Mimotogi; Masami Takata; Kinji Kimura; Yoshimasa Nakamura, International Conference on Parallel and Distributed Processing Techniques and Applications, Application of the Orthogonal QD Algorithm with Shift to Singular Value Decomposition for Large Sparse Matrices, 27 Jul. 2020, 27 Jul. 2020 - 30 Jul. 2020
- Masami Takata; Sho Araki; Kinji Kimura; Yoshimasa Nakamura, International Conference on Parallel and Distributed Processing Techniques and Applications, On an Implementation of the One-Sided Jacobi Method with High Accuracy, 27 Jul. 2020, 27 Jul. 2020 - 30 Jul. 2020
- Shigeka Nakajima; Masami Takata, International Conference on Parallel and Distributed Processing Techniques and Applications, Improvement of Island GA using Multiple Fitness Functions, 27 Jul. 2020, 27 Jul. 2020 - 30 Jul. 2020
- Invited oral presentation, 02 Aug. 2019 - 03 Aug. 2019
- Sayaka Iida; Yuki Takemoto; Yu Ishikawa; Masami Takata; Kazuki Joe, 2019 International Conference on Parallel and Distributed Processing Techniques and Applications, Layout Analysis using Semantic Segmentation for Imperial Meeting Minutes, Jul. 2019
- Yuko Takae:Masami Takata:Kinji Kimura:Yoshimasa Nakamura, 2019 International Conference on Parallel and Distributed Processing Techniques and Applications, A Discrete Three-wave System of Kahan-Hirota-Kimura Type and the QRT Mapping, Jul. 2019
- Masana Aoki; Masami Takata; Kinji Kimura; Yoshimasa Nakamura, 2019 International Conference on Parallel and Distributed Processing Techniques and Applications, Improvement of the Thick-Restart Lanczos Method in Single Precision Floating Point Arithmetic using Givens Rotations, Jul. 2019
- Sho Araki, Masami Takata, Kinji Kimura, Yoshimasa Nakamura, 2019 International Conference on Parallel and Distributed Processing Techniques and Applications, On an Implementation of Two-Sided Jacobi Method, Jul. 2019
- Yuki Takemoto, Yu Ishikawa, Masami Takata, Kazuki Joe, 2019 International Conference on Parallel and Distributed Processing Techniques and Applications, Structure of Neural Network Automatically Generating Fonts for Early-Modern Japanese Printed Books, Jul. 2019
- Suzuka Yasunami, Norie Koiso, Yuki Takemoto, Yu Ishikawa, Masami Takata, Kazuki Joe, 2019 International Conference on Parallel and Distributed Processing Techniques and Applications, Applying CNNs to Early-Modern Printed Japanese Character Recognition, Jul. 2019
- TAKATA Masami, 近代文語体と現代口語体の自動翻訳への試み, Dec. 2018
- TAKATA Masami, 帝国議会会議録におけるレイアウト解析手法の比較, Sep. 2018, False
- TAKATA Masami; Yuki Takemoto; Yu Ishikawa; Masami Takata; Kazuki Joe, In Proceedings of 2018 International Conference on Parallel and Distributed Processing Techniques and Applications, Automatic Font Generation For Early-Modern Japanese Printed Books, Jul. 2018
- TAKATA Masami; Sho Araki; Hiroki Tanaka; Masami Takata; Kinji Kimura; Yoshimasa Nakamura, In Proceedings of 2018 International Conference on Parallel and Distributed Processing Techniques and Applications, Fast Computation Method of Column Space by using the DQDS Method and the OQDS Method, Jul. 2018
- TAKATA Masami; Masana Aoki; Masami Takata; Kinji Kimura; Yoshimasa Nakamura, In Proceedings of 2018 International Conference on Parallel and Distributed Processing Techniques and Applications, Improvement of Computing Partial Singular Value Decomposition for Dense Matrix using Thick-restart-Lanczos Method, Jul. 2018, True
- TAKATA Masami, シフト付きCholesky QR分解を用いた特異値分解の高速化, Dec. 2017, False
- TAKATA Masami; Yuya Ishida; Masami Takata; Kinji Kimura; Yoshimasa Nakamura, In Proceedings of 2017 International Conference on Parallel and Distributed Processing Techniques and Applications, An Improvement of Augmented Implicitly Restarted Lanczos Bidiagonalization Method, Jul. 2017
- TAKATA Masami; Kaori Fujimoto; Yu Ishikawa; Masami Takata; Kazuki Joe, In Proceedings of 2017 International Conference on Parallel and Distributed Processing Techniques and Applications, Early-Modern Printed Character Recognition using Ensemble Learning, Jul. 2017, True
- TAKATA Masami; Mayuko Iwamoto; Yu Ishikawa; Masami Takata; Kazuki Joe, In Proceedings of 2017 International Conference on Parallel and Distributed Processing Techniques and Applications, Hand shape recognition using the sEMG of the upper extremity, Jul. 2017, True
- TAKATA Masami; Yu Ishikawa; Kaori Nishibata; Masami Takata; Hiroyasu Kamo; Kazuki Joe, In Proceedings of 2017 International Conference on Parallel and Distributed Processing Techniques and Applications, Validation of EEG Authentication Accuracy with Electrode Slippage, Jul. 2017, True
- TAKATA Masami, 透過型HMD上での日本語文字切り出しの一手法, Feb. 2017, False
- TAKATA Masami, 計測位置のずれを考慮した脳波個人認証の検証, Feb. 2017, False
- TAKATA Masami, 近代書籍用フォントの自動生成, Feb. 2017, False
- TAKATA Masami, DCGANを用いたイラスト画像生成の一手法, Feb. 2017, False
- TAKATA Masami, 調剤薬局用薬剤売買のためのレコメンドシステム, Dec. 2016, False
- TAKATA Masami, Myoを用いた腕の表面筋電位解析, Sep. 2016, False
- TAKATA Masami, 遺伝的アルゴリズムを用いたQWOPの運動学習の一手法, Sep. 2016, False
- TAKATA Masami; Masami Takata; Sho Araki; Kinji Kimura; Yuki Fujii; Yoshimasa Nakamura, In Proceedings of 2016 International Conference on Parallel and Distributed Processing Techniques and Applications, Implementation of Computing Singular Pairs for Large Scale Matrices using ARPACK, Jul. 2016, True
- TAKATA Masami; Yu Ishikawa; Kaori Nishibata; Masami Takata; Hiroyasu Kamo; Kazuki Joe, In Proceedings of 2016 International Conference on Parallel and Distributed Processing Techniques and Applications, Biometric Authentication based on Multi-feature Combination using EEG, Jul. 2016, True
- TAKATA Masami; Hitomi Oigawa; Yu Ishikawa; Umeda Tomohiro; Masami Takata; Kazuki Joe, In Proceedings of 2016 International Conference on Parallel and Distributed Processing Techniques and Applications, Correlation of Proximity Voluntary Muscles EMG and EEG, Jul. 2016, True
- TAKATA Masami; Kazumi Kosaka; Kaori Fujimoto; Yu Ishikawa; Masami Takata; Kazuki Joe, In Proceedings of 2016 International Conference on Parallel and Distributed Processing Techniques and Applications, Comparison of Feature Extraction Methods for Early-Modern Japanese Printed Character Recognition, Jul. 2016, True
- TAKATA Masami, Deep Learningを用いたSNSからの知識抽出の一手法, Mar. 2016
- TAKATA Masami, GPを用いた活字風手書き文字の生成, Dec. 2015, False
- TAKATA Masami, 脳波計測位置のずれが脳波個人認証に与える影響, Sep. 2015, False
- TAKATA Masami, 近代書籍用OCRのための学習用特定フォントセットの自動生成手法, Sep. 2015, False
- TAKATA Masami, 上肢神経系セルフチェックのためのHapLogを用いた評価システムの試作, Sep. 2015, False
- TAKATA Masami; Hitomi Oigawa; Yu Ishikawa; Masami Takata; Kazuki Joe, In Proceedings of 2015 International Conference on Parallel and Distributed Processing Techniques and Applications, Visualization of Sensory Weight for Shouldering Randoseru, Jul. 2015
- TAKATA Masami; Kazumi Kosaka; Taeka Awazu; Yu Ishikawa; Masami Takata; Kazuki Joe, In Proceedings of 2015 International Conference on Parallel and Distributed Processing Techniques and Applications, An Effective and Interactive Training Data Collection Method for Early-Modern Japanese Printed Character Recognition, Jul. 2015, True
- TAKATA Masami; Makiko Funasaka; Yu Ishikawa; Masami Takata; Kazuki Joe, In Proceedings of 2015 International Conference on Parallel and Distributed Processing Techniques and Applications, Sign Language Recognition using Leap Motion Controller, Jul. 2015, True
- TAKATA Masami; Kanae Kunimatsu; Yu Ishikawa; Masami Takata; Kazuki Joe, In Proceedings of 2015 International Conference on Parallel and Distributed Processing Techniques and Applications, A Music Composition Model with Genetic Programming -A Case Study of Chord Progression and Bassline-, Jul. 2015, True
- TAKATA Masami; Masami Takata; Hiroyuki Ishigami; Kinji Kimura; Yuki Fujii; Hiroki Tanaka; Yoshimasa Nakamura, In Proceedings of 2015 International Conference on Parallel and Distributed Processing Techniques and Applications, Performance Evaluation of Golub-Kahan-Lanczos Algorithm with Reorthogonalization by Classical Gram-Schmidt Algorithm and OpenMP, Jul. 2015, True
- TAKATA Masami; Yu Ishikawa; Chinami Yoshida; Masami Takata; Hiroyasu Kamo; Kazuki Joe, In Proceedings of 2015 International Conference on Parallel and Distributed Processing Techniques and Applications, A Personal Classification Method Using Spatial Information of Multi-channel EEG, Jul. 2015
- TAKATA Masami, 呼吸変動解析によるストレス指標の提案, Jun. 2015, False
- TAKATA Masami, COG分類を考慮した遺伝子発現プロファイルデータのクラスタリング手法, Jun. 2015, False
- TAKATA Masami, 心拍波形の振幅と面積を用いた個人認証の提案, Jun. 2015
- TAKATA Masami, ニューラルネットワークを用いた心拍データの学習と利用, Feb. 2015, False
- TAKATA Masami, Leap Motion Controllerを用いた指文字認識, Feb. 2015, False
- TAKATA Masami, 機械学習を用いた問題解答のための推論システムの開発, Dec. 2014, False
- TAKATA Masami, ボリュームデータにおける3次元物体の部分認識, Dec. 2014, False
- TAKATA Masami, 表構造を用いた漢方薬オントロジー自動構築手法の提案, Nov. 2014, False
- TAKATA Masami; Ryoko Nomura; Yu Ishikawa; Tomohiro Umeda; Masami Takata; Hiroyasu Kamo; Kazuki Joe, Biomedical Engineering International Conference (BMEiCON), Biometrics authentication based on chaotic heartbeat waveform, Nov. 2014, True
- TAKATA Masami, VR用体感アミューズメントアプリの開発, Sep. 2014, False
- TAKATA Masami, プリシェイピングを用いたVRユーザのモーション認識, Sep. 2014, False
- TAKATA Masami; Yu Ishikawa; Chinami Yoshida; Masami Takata; Kazuki Joe, In Proceedings of 2014 International Conference on Parallel and Distributed Processing Techniques and Applications, Validation of EEG Personal Authentication with Multi-channels and Multi-tasks, Jul. 2014, True
- TAKATA Masami; Kinji Kimura; Takuto Akiyama; Hiroyuki Ishigami; Masami Takata; Yoshimasa Nakamura, In Proceedings of 2014 International Conference on Parallel and Distributed Processing Techniques and Applications, Accelerating the Numerical Computation of Positive Roots of Polynomials using Improved Bounds, Jul. 2014, True
- TAKATA Masami, 活字データの分類を用いた進化計算による近代書籍からのルビ除去, Jun. 2014, False
- TAKATA Masami, Development of a Physical Activity Recommendation System for Smart Health-Care, Mar. 2014, False
- TAKATA Masami, An Automatic Ontology Concepts Extension Method, Mar. 2014, False
- TAKATA Masami; Rhoko Nomura; Tomohiro Umeda; Naoko Yoshii; Masami Takata; Kazuki Joe, 7th international joint conference on BIOmedical engineering Systems and TEChnologies, Biometrics Authentication using Another Feature of Heartbeat Waveform, Mar. 2014, True
- TAKATA Masami; Taeka Awazu; Manami Fukuo; Masami Takata; Kazuki Joe, 3rd International Conference on Pattern Recognition Applications and Methods, A Multi-fonts Kanji Character Recognition Method for Early-modern Japanese Printed Books with Ruby Characters, Mar. 2014, True
- TAKATA Masami, Modeling of physical activity including Non-Exercise Activity Thermogenesis using plural triaxial accelerometers, Feb. 2014, False
- TAKATA Masami, 多フォント漢字認識手法における各カテゴリと必要教師データ数の分析, Feb. 2014, False
- TAKATA Masami, オントロジーを用いた建造物のバリアフリー度判定, Feb. 2014, False
- TAKATA Masami, 定在波レーダを用いた距離画像の構築, Feb. 2014, False
- TAKATA Masami, 脳波個人認証のための特徴抽出, Feb. 2014, False
- TAKATA Masami, 3次元形状データにおける色段差を利用した特徴抽出法の提案, Nov. 2013
- TAKATA Masami; Yuki Eguchi; Yuri Iwakata; Minami Kawasaki; Masami Takata; Kazuki Joe, The 3rd Joint International Semantic Technoogy Conference, Ontology Construction Support for Specialized Books, Nov. 2013
- TAKATA Masami, Graph500のHybrid解法に内在する局所性, Jul. 2013, False
- TAKATA Masami; Noboru Tanabe; Sonoko Tomimori; Masami Takata; Kazuki Joe, In Proceedings of 2013 International Conference on Parallel and Distributed Processing Techniques and Applications, Locality Analysis for Characterizing Applications Based on Sparse Matrices, Jul. 2013, True
- TAKATA Masami; Masami Takata; Takuto Akiyama; Sho Araki; Kinji Kimura; Yoshimasa Nakamur, In Proceedings of 2013 International Conference on Parallel and Distributed Processing Techniques and Applications, Improved Computation of Bounds for Positive Roots of Polynomials, Jul. 2013, True
- TAKATA Masami, 疎行列キャッシュに基づくGraph500ベンチマークの特性解析, May 2013, False
- TAKATA Masami; Noboru Tanabe; Junko Kogou; Sonoko Tomimori; Masami Takata; Kazuki Joe, The Fifth International Conference on future Computational Technologies and Applications, Future Irregular Computing with Memory Accelerators, May 2013, True
- TAKATA Masami, Xeon PhiのGather命令とHMCのGatherの差異, May 2013, False
- TAKATA Masami, 同一出版者の近代書籍に対する漢字認識評価, Mar. 2013, False
- TAKATA Masami; Noboru Tanabe; Junko Kogou; Sonoko Tomimori; Masami Takata; Kazuki Joe, The 5th WorkShop on UnConventional High Performance Computing 2012, A CG-Solver for Future GPU Clsters Enhanced with Memory Accelerators, Aug. 2012, True
- TAKATA Masami; Masami Takata, 2012 International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA'11), Performance Evaluation of Some Inverse Iteration Algorithms on PowerXCellTM 8i Processor, Jul. 2012, True
- TAKATA Masami; Hiroki Toyokawa; Hiroyuki Ishigami; Kinji Kimura; Masami Takata; Yoshimasa Nakamura, High Performance Computing for Computational Science, Lecture Notes in Computer science 7581, Accelerating the Reorthogonalization of Singular Vectors with a Multi-core Processor, Jul. 2012
- TAKATA Masami, 近代デジタルライブラリーの自動テキスト化に向けた実験環境の開発, Feb. 2012, False
- TAKATA Masami; Masami Takata, 2011 International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA'11), An Improved Shift Strategy for the Modified Discrete Lotka-Volterra with Shift Algorithm, Jul. 2011, True
- TAKATA Masami; Masami Takata, 2010 International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA'10), Generating Algorithms for Matrices with Large Condition Number to Evaluate Singular Value Decomposition, Jul. 2010, True
Awards
Industrial Property Rights
Research Projects
- Apr. 2023 - Mar. 2025, Principal investigator, GANを活用した形状推定技術に関する研究, 城和貴、髙田雅美, 三菱電機株式会社, 共同研究
- Grant-in-Aid for Scientific Research (B), Apr. 2020 - Mar. 2023, 20H04483, Coinvestigator, 近代書籍からの知の再構築, 城 和貴; 高田 雅美; 石川 由羽, Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B), Nara Women's University, 17680000, 13600000, 4080000, 近代書籍文字認識において、透視変換を用いたデータ拡張ならびにStyleGANを用いたデータ拡張を提案し、特にStyleGANを用いた手法が有効であることを示した。これらの手法に関しては、情報処理学会の研究会で発表を行っている。また、未知フォントを生成するfG-NNとfG-GANという2手法を提案し、未知フォントを生成できることを示した。この結果は情報処理学会論文誌に採録されている。さらに低出現頻度文字のクローラを実稼働させ、数日で約２千種の低出現頻度文字のクローリングを行った。この結果は担当した学生の修士論文で報告している。
近代文語体と現代口語体の自動翻訳では、学習データとして約4万対の文を整備した。これはスタンフォード大学フーバー研究所がアーカイブ化を進めている邦字新聞の翻訳と文字起こしをベースに行っている。翻訳に関しては本学文学部の学生にバイトとして担当してもらっており、質の良い翻訳文が可能となった。
また、対訳データのない状態から学習を行う手法では、分野を合わせることで無秩序に選んだコーパスよりよい性能が出ることが判明した。この結果は情報処理学会の研究会で発表を行っている。
レイアウト解析ではCRAFTを用いたものが有望であることを情報処理学科研究会で報告したが、本文の抽出を優先すると見出し文字部分の抽出ができないという問題が判明した。逆に見出し部分に焦点を当てると本文を抽出できない。この理由は我々の有する計算資源が貧弱であることだが、これを回避する手法が期待される。, kaken - Grant-in-Aid for Scientific Research (B), 01 Apr. 2017 - 31 Mar. 2020, 17H02858, Integrable Algorithms: Basis of Higher Accurate Computations with Positivity, Nakamura Yoshimasa, Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 17810000, 13700000, 4110000, We studied integrable algorithms from various points of view. The Jacobi method, which is known as the singular value decomposition method for dense matrices, is more accurate but slower than the standard solution method that combines the Householder transformation and the QR method. The Jacobi method has one side and both sides, and only the one-sided Jacobi method is implemented in LAPACK in the United States. We implemented the two-sided Jacobi method and confirmed that it is faster and more accurate than the LAPACK version of the one-sided Jacobi method. On the other hand, the LAPACK version of the one-sided Jacobi method has the disadvantage that the eigenvectors are not sufficiently orthogonal, although the calculation time for small and medium-sized matrices is not so large. It was shown that high-precision implementation of the one-sided Jacobi method is possible by using high-precision Givens rotation and fused multiply-add (FMA) operation., kaken
- 2017 - 2020, 近代書籍からの知の抽出, 科学技術振興調整費による総合研究, 0, 0, 0, 基盤研究B 17H01829, Competitive research funding
- 2014 - 2016, 近代書籍自動テキスト化支援環境の構築, 科学研究費補助金, 0, 0, 0, Competitive research funding
- Grant-in-Aid for Scientific Research (C), 2009 - 2012, 21500237, Auto Recognition of Kanji Characters for Early-Modern Japanese Printed Books, JOE Kazuki; TAKATA Masami, Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Nara Women's University, 0, 0, 0, The national diet library of Japan provides the public with 300 thousands kinds of early-modern printed books as an internet service. In this research we develop an early-modern printed Kanji recognition system to make a full use of the digital archive. The recognition method is an extension of a recognition method for off-line handwritten Kanji characters. A portal site is developed for extra-learning the system with the help of users. Furthermore we faced several problems such as bleed through and rubi removal to find some solutions., Competitive research funding, kaken
- 2008 - 2012, マルチコアプロセッサに対応した革新的特異値分解ライブラリの開発, 科学研究費補助金, 0, 0, 0, 基盤研究A, Competitive research funding
- 2009 - 2009, Speed-up in mdLVs by Limitation in Computational Number of Shift, 補助金, 0, 0, 0, 電気通信普及財団「海外渡航旅費援助」, Competitive research funding
- 2009 - 2009, Speed-up in mdLVs by Limitation in Computational Number of Shift, Grants and Funding, 0, 0, 0, Competitive research funding
- 2006 - 2009, 特定問題への新しい特異値分解アルゴリズムの適用に関する研究, 科学研究費補助金, 0, 0, 0, 若手研究B, Competitive research funding
- 2001 - 2001, Effective Parallelization of Turbulent Flow Simulation, 補助金, 0, 0, 0, 電気通信普及財団「海外渡航旅費援助」, Competitive research funding
- 2001 - 2001, Effective Parallelization of Turbulent Flow Simulation, Grants and Funding, 0, 0, 0, Competitive research funding
■Ⅲ．社会連携活動実績
１．公的団体の委員等（審議会、国家試験委員、他大学評価委員，科研費審査委員等）
- ワークショップ ``Mathematical Modeling and Problem Solving’’ in PDPTA, session chair, Sep. 2022 - Present
- 情報処理学会 数理モデルと問題解決研究会, 運営委員, Apr. 2007 - Present, Society
- 情報処理学会 数理モデルと問題解決研究会, 編集委員, Apr. 2019 - Mar. 2023
- 情報処理学会 ハイパフォーマンスコンピューティング研究会, 運営委員, Apr. 2019 - Mar. 2022, Society
- 情報処理学会, 代表会員, Apr. 2020 - Mar. 2021
- 情報処理学会 数理モデルと問題解決研究会, 幹事（国際会議PDPTA担当）, Apr. 2019 - Mar. 2021
- 情報処理学会\n若手研究者の会, 数理モデルと問題解決研究会代表, Apr. 2013 - Mar. 2016, Society
- 情報処理学会\n若手研究者の会, 数理モデルと問題解決研究会代表, Apr. 2013 - Mar. 2016, Society
- 情報処理学会\n数理モデルと問題解決研究会, 運営委員, Apr. 2007, Society
- 情報処理学会\n数理モデルと問題解決研究会, 幹事（国際会議PDPTA担当）, Apr. 2007, Society
- 情報処理学会\n数理モデルと問題解決研究会, 幹事（国際会議PDPTA担当）, Apr. 2007, Society
- 情報処理学会\nハイパフォーマンスコンピューティング研究会, 運営委員会, Apr. 2000, Society
- Springer, Editorial Board, Jan. 2023
- Springer, Editorial Board, Jan. 2023
