Division for Intelligent Societal Implementation of Mathmatical Computation

Research Output 1997 2019

2019

A linear algorithm for Brick Wang tiling

Derouet-Jourdan, A., Kaji, S. & Mizoguchi, Y., Sep 1 2019, In : Japan Journal of Industrial and Applied Mathematics. 36, 3, p. 749-761 13 p.

Research output: Contribution to journalArticle

Linear Algorithm
Tile
Brick
Tiling
Computer graphics
Hilbert spaces
Nonlinear dynamical systems
Decomposition
Nonlinear Dynamics
Spectrum analysis
Diagnostic Imaging
Neural Networks (Computer)
Computer-Assisted Image Processing
Hand Strength
Licensure

Polynomial expressions of p-ary auction functions

Kaji, S., Maeno, T., Nuida, K. & Numata, Y., Jun 1 2019, In : Journal of Mathematical Cryptology. 13, 2, p. 69-80 12 p.

Research output: Contribution to journalArticle

Auctions
Polynomials
Polynomial
Secure multi-party Computation
Homomorphic Encryption

Suspension Splittings and Self-maps of Flag Manifolds

Kaji, S. & Theriault, S., Apr 1 2019, In : Acta Mathematica Sinica, English Series. 35, 4, p. 445-462 18 p.

Research output: Contribution to journalArticle

Lie groups
Flag Manifold
Analytic group
Wedge
Idempotent
2018
3 Citations (Scopus)

A circuit-preserving mapping from multilevel to Boolean dynamics

Fauré, A. & Kaji, S., Mar 7 2018, In : Journal of Theoretical Biology. 440, p. 71-79 9 p.

Research output: Contribution to journalArticle

Networks (circuits)
ham
Boolean Model
methodology
Trajectories

A new mathematical approach to finding global solutions of the magnetic structure determination problem

Tomiyasu, K., Tomiyasu, R., Matsuda, M. & Matsuhira, K., Dec 1 2018, In : Scientific reports. 8, 1, 16228.

Research output: Contribution to journalArticle

Open Access
Neutron Diffraction
Mathematics
Physics
2 Citations (Scopus)

Metric on nonlinear dynamical systems with Perron-Frobenius operators

Ishikawa, I., Fujii, K., Ikeda, M., Hashimoto, Y. & Kawahara, Y., Jan 1 2018, In : Advances in Neural Information Processing Systems. 2018-December, p. 2856-2866 11 p.

Research output: Contribution to journalConference article

Nonlinear dynamical systems
Hilbert spaces
Pattern recognition
Learning systems
Mathematical operators
3 Citations (Scopus)

Sparse nonnegative dynamic mode decomposition

Takeishi, N., Kawahara, Y. & Yairi, T., Feb 20 2018, 2017 IEEE International Conference on Image Processing, ICIP 2017 - Proceedings. IEEE Computer Society, p. 2682-2686 5 p. (Proceedings - International Conference on Image Processing, ICIP; vol. 2017-September).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Decomposition
Nonlinear dynamical systems
Processing
Experiments
2017
4 Citations (Scopus)

Homotopy decomposition of a suspended real toric space

Choi, S., Kaji, S. & Theriault, S., Apr 1 2017, In : Boletin de la Sociedad Matematica Mexicana. 23, 1, p. 153-161 9 p.

Research output: Contribution to journalArticle

Homotopy
Decompose
Rigidity
Odd
Moment
16 Citations (Scopus)

Representative Selection with Structured Sparsity

Wang, H., Kawahara, Y., Weng, C. & Yuan, J., Mar 1 2017, In : Pattern Recognition. 63, p. 268-278 11 p.

Research output: Contribution to journalArticle

Experiments
10 Citations (Scopus)

Subspace dynamic mode decomposition for stochastic Koopman analysis

Takeishi, N., Kawahara, Y. & Yairi, T., Sep 18 2017, In : Physical Review E. 96, 3, 033310.

Research output: Contribution to journalArticle

Stochastic Analysis
dynamical systems
Random Dynamical Systems
Subspace
decomposition
1 Citation (Scopus)

The mod 2 dual Steenrod algebra as a subalgebra of the mod 2 dual Leibniz-Hopf algebra

Turgay, N. D. & Kaji, S., Sep 1 2017, In : Journal of Homotopy and Related Structures. 12, 3, p. 727-739 13 p.

Research output: Contribution to journalArticle

Leibniz Algebra
Steenrod Algebra
Hopf Algebra
Subalgebra
Algebra
2016
3 Citations (Scopus)

A concise parametrization of affine transformation

Kaji, S. & Ochiai, H., Sep 7 2016, In : SIAM Journal on Imaging Sciences. 9, 3, p. 1355-1373 19 p.

Research output: Contribution to journalArticle

Parametrization
Affine transformation
Computer graphics
Animation
Interpolation

Counting the number of homotopy associative multiplications on certain H-spaces

Kaji, S., Sakai, M. & Theriault, S., Dec 1 2016, In : Topology and its Applications. 214, p. 137-149 13 p.

Research output: Contribution to journalArticle

H-space
Homotopy
Counting
Multiplication
Odd
11 Citations (Scopus)

Efficient generalized fused lasso and its applications

Xin, B., Kawahara, Y., Wang, Y., Hu, L. & Gao, W., May 1 2016, In : ACM Transactions on Intelligent Systems and Technology. 7, 4, 60.

Research output: Contribution to journalArticle

Lasso
Alzheimer's Disease
Background Subtraction
Directed graphs
Scalability
2015
1 Citation (Scopus)

A mathematical problem for security analysis of hash functions and pseudorandom generators

Nuida, K., Abe, T., Kaji, S., Maeno, T. & Numata, Y., Feb 8 2015, In : International Journal of Foundations of Computer Science. 26, 2, p. 169-194 26 p.

Research output: Contribution to journalArticle

Hash functions
Probability density function

A novel continuous and structural VAR modeling approach and its application to reactor noise analysis

Demeshko, M., Washio, T., Kawahara, Y. & Pepyolyshev, Y., Dec 1 2015, In : ACM Transactions on Intelligent Systems and Technology. 7, 2, 24.

Research output: Contribution to journalArticle

Open Access
Structural Modeling
Reactor
Continuous Time
AR Model
Discrete-time
3 Citations (Scopus)

Application of Continuous and Structural ARMA modeling for noise analysis of a BWR coupled core and plant instability event

Demeshko, M., Dokhane, A., Washio, T., Ferroukhi, H., Kawahara, Y. & Aguirre, C., Jan 1 2015, In : Annals of Nuclear Energy. 75, p. 645-657 13 p.

Research output: Contribution to journalArticle

Pressure control
Control systems
Signal analysis
Power plants
Dynamical systems
3 Citations (Scopus)

Higher order fused regularization for supervised learning with grouped parameters

Takeuchi, K., Kawahara, Y. & Iwata, T., Jan 1 2015, Machine Learning and Knowledge Discovery in Databases - European Conference, ECML PKDD 2015, Proceedings. Appice, A., Gama, J., Costa, V. S., Gama, J., Jorge, A., Appice, A., Appice, A., Costa, V. S., Jorge, A., Appice, A., Rodrigues, P. P., Rodrigues, P. P., Gama, J., Costa, V. S., Soares, S., Rodrigues, P. P., Soares, S., Soares, S., Gama, J., Soares, S., Jorge, A., Jorge, A., Rodrigues, P. P. & Costa, V. S. (eds.). Springer Verlag, p. 577-593 17 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 9284).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Supervised learning
Supervised Learning
Regularization
Higher Order
Mathematical operators

Mod p decompositions of the loop spaces of compact symmetric spaces

Kaji, S., Ohsita, A. & Theriault, S., Jun 19 2015, In : Algebraic and Geometric Topology. 15, 3, p. 1771-1811 41 p.

Research output: Contribution to journalArticle

Loop Space
Compact Space
Symmetric Spaces
Decompose
Homotopy
3 Citations (Scopus)

Skill grouping method: Mining and clustering skill differences from body movement BigData

Yamagiwa, S., Kawahara, Y., Tabuchi, N., Watanabe, Y. & Naruo, T., Dec 22 2015, Proceedings - 2015 IEEE International Conference on Big Data, IEEE Big Data 2015. Luo, F., Ogan, K., Zaki, M. J., Haas, L., Ooi, B. C., Kumar, V., Rachuri, S., Pyne, S., Ho, H., Hu, X., Yu, S., Hsiao, M. H-I. & Li, J. (eds.). Institute of Electrical and Electronics Engineers Inc., p. 2525-2534 10 p. 7364049. (Proceedings - 2015 IEEE International Conference on Big Data, IEEE Big Data 2015).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sports
Mathematical models
Optical recording
Biomechanics
Jitter

Weyl group symmetry on the gkm graph of a gkm manifold with an extended lie group action

Kaji, S., Jan 1 2015, In : Osaka Journal of Mathematics. 52, 1, p. 31-41 11 p.

Research output: Contribution to journalArticle

Lie Group Actions
Weyl Group
Symmetry
Compact Lie Group
Graph in graph theory
2014
11 Citations (Scopus)

Improvement of instrument devices for super high resolution powder diffractometer at J-PARC

Torii, S., Yonemura, M., Ishikawa, Y., Miao, P., Tomiyasu, R., Satoh, S., Noda, Y. & Kamiyama, T., Jan 1 2014, In : Journal of Physics: Conference Series. 502, 1, 012052.

Research output: Contribution to journalConference article

Open Access
diffractometers
restoration
absorbers (materials)
electric choppers
high resolution
5 Citations (Scopus)

Method to generate all the geometrical ambiguities of powder indexing solutions

Tomiyasu, R., Dec 1 2014, In : Journal of Applied Crystallography. 47, 6, p. 2055-2059 5 p.

Research output: Contribution to journalArticle

Powders
Powder Diffraction
Reproducibility of Results
Crystal lattices
Diffraction patterns
6 Citations (Scopus)

Multi-task feature selection on multiple networks via maximum flows

Sugiyama, M., Azencott, C. A., Grimm, D., Kawahara, Y. & Borgwardt, K. M., Jan 1 2014, SIAM International Conference on Data Mining 2014, SDM 2014. Zaki, M. J., Banerjee, A., Parthasarathy, S., Ning-Tan, P., Obradovic, Z. & Kamath, C. (eds.). Society for Industrial and Applied Mathematics Publications, p. 199-207 9 p. (SIAM International Conference on Data Mining 2014, SDM 2014; vol. 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
Feature extraction
Genes
Electric network analysis
Data mining
11 Citations (Scopus)

Petascale general solver for semidefinite programming problems with over two million constraints

Fujisawa, K., Endo, T., Yasui, Y., Sato, H., Matsuzawa, N., Matsuoka, S. & Waki, H., Jan 1 2014, Proceedings - IEEE 28th International Parallel and Distributed Processing Symposium, IPDPS 2014. IEEE Computer Society, p. 1171-1180 10 p. 6877345. (Proceedings of the International Parallel and Distributed Processing Symposium, IPDPS).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Computer programming
Parallel algorithms
Factorization
Program processors
Supercomputers
2013
2 Citations (Scopus)

A novel structural AR modeling approach for a continuous time linear Markov system

Demeshko, M., Washio, T. & Kawahara, Y., Jan 1 2013, p. 104-113. 10 p.

Research output: Contribution to conferencePaper

Time series
Dynamical systems
Experiments
27 Citations (Scopus)

Efficient network-guided multi-locus association mapping with graph cuts

Azencott, C. A., Grimm, D., Sugiyama, M., Kawahara, Y. & Borgwardt, K. M., Jul 1 2013, In : Bioinformatics. 29, 13, p. i171-i179

Research output: Contribution to journalArticle

Open Access
Graph Cuts
Genetic Loci
Locus
Genes
Phenotype
26 Citations (Scopus)

NUMA-optimized parallel breadth-first search on multicore single-node system

Yasui, Y., Fujisawa, K. & Goto, K., Dec 1 2013, Proceedings - 2013 IEEE International Conference on Big Data, Big Data 2013. p. 394-402 9 p. 6691600. (Proceedings - 2013 IEEE International Conference on Big Data, Big Data 2013).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Data storage equipment
Supercomputers
Graph theory
Processing
6 Citations (Scopus)

The second-order reduced density matrix method and the two-dimensional Hubbard model

Anderson, J. S. M., Nakata, M., Igarashi, R., Fujisawa, K. & Yamashita, M., Jan 1 2013, In : Computational and Theoretical Chemistry. 1003, p. 22-27 6 p.

Research output: Contribution to journalArticle

Hubbard model
two dimensional models
matrix methods
Nuclear Energy
Hamiltonians
2012
76 Citations (Scopus)

Application of matrix decomposition algorithms for singular matrices to the Pawley method in Z-Rietveld

Oishi-Tomiyasu, R., Yonemura, M. & Morishima, T., Feb 9 2012, In : Journal of Applied Crystallography. 45, 2, p. 299-308 10 p.

Research output: Contribution to journalArticle

Decomposition
Powder Diffraction
Rietveld analysis
Biological Science Disciplines
Least-Squares Analysis
5 Citations (Scopus)

High-performance general solver for extremely large-scale semidefinite programming problems

Fujisawa, K., Sato, H., Matsuoka, S., Endo, T., Yamashita, M. & Nakata, M., Dec 1 2012, 2012 International Conference for High Performance Computing, Networking, Storage and Analysis, SC 2012. 6468521. (International Conference for High Performance Computing, Networking, Storage and Analysis, SC).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Combinatorial optimization
Factorization
Program processors
Quantum chemistry
Structural optimization
30 Citations (Scopus)

Latest developments in the SDPA family for solving large-scale SDPs

Yamashita, M., Fujisawa, K., Fukuda, M., Kobayashi, K., Nakata, K. & Nakata, M., Jan 1 2012, International Series in Operations Research and Management Science. Springer New York LLC, p. 687-713 27 p. (International Series in Operations Research and Management Science; vol. 166).

Research output: Chapter in Book/Report/Conference proceedingChapter

Family
11 Citations (Scopus)
Crystal lattices
Lattice constants
lattice parameters
Observation
Powders
1 Citation (Scopus)

Weighted likelihood policy search with model selection

Ueno, T., Hayashi, K., Washio, T. & Kawahara, Y., Dec 1 2012, Advances in Neural Information Processing Systems 25: 26th Annual Conference on Neural Information Processing Systems 2012, NIPS 2012. p. 2357-2365 9 p. (Advances in Neural Information Processing Systems; vol. 3).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Reinforcement learning
Statistics
2011

A mathematical problem for security analysis of hash functions and pseudorandom generators

Nuida, K., Abe, T., Kaji, S., Maeno, T. & Numata, Y., Nov 9 2011, Advances in Information and Computer Security - 6th International Workshop, IWSEC 2011, Proceedings. p. 144-160 17 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 7038 LNCS).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Pseudorandom Generator
Hash functions
Security Analysis
Hash Function
Probability density function
1 Citation (Scopus)

Discovering causal structures in binary exclusive-or skew acyclic models

Inazumi, T., Washio, T., Shimizu, S., Suzuki, J., Yamamoto, A. & Kawahara, Y., Sep 29 2011, p. 373-382. 10 p.

Research output: Contribution to conferencePaper

Skew
Artificial intelligence
Statistics
Binary
Causal Model
3 Citations (Scopus)

Equivariant Schubert calculus of Coxeter groups

Kaji, S., Dec 1 2011, In : Proceedings of the Steklov Institute of Mathematics. 275, 1, p. 239-250 12 p.

Research output: Contribution to journalArticle

Schubert Calculus
Coxeter Group
Equivariant
Finite Group
Ring

Learning non-linear dynamical systems by alignment of local linear models

Joko, M., Kawahara, Y. & Yairi, T., Oct 24 2011, In : Transactions of the Japanese Society for Artificial Intelligence. 26, 6, p. 638-648 11 p.

Research output: Contribution to journalArticle

Open Access
Nonlinear dynamical systems
Telemetering
Learning systems
Data acquisition
Identification (control systems)
7 Citations (Scopus)

Netal: High-performance implementation of network analysis library considering computer memory hierarchy

Yasui, Y., Fujisawa, K., Goto, K., Kamiyama, N. & Talcamatsu, M., Jan 1 2011, In : Journal of the Operations Research Society of Japan. 54, 4, p. 259-280 22 p.

Research output: Contribution to journalArticle

Shortest path
Network analysis
High performance
Graph
Centrality
39 Citations (Scopus)

Performance characteristics of Graph500 on large-scale distributed environment

Suzumura, T., Ueno, K., Sato, H., Fujisawa, K. & Matsuoka, S., Dec 1 2011, Proceedings - 2011 IEEE International Symposium on Workload Characterization, IISWC - 2011. p. 149-158 10 p. 6114175. (Proceedings - 2011 IEEE International Symposium on Workload Characterization, IISWC - 2011).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Supercomputers
Data storage equipment
8 Citations (Scopus)

Prismatic algorithm for discrete D.C. programming problem

Kawahara, Y. & Washio, T., Dec 1 2011, Advances in Neural Information Processing Systems 24: 25th Annual Conference on Neural Information Processing Systems 2011, NIPS 2011. (Advances in Neural Information Processing Systems 24: 25th Annual Conference on Neural Information Processing Systems 2011, NIPS 2011).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Learning systems
Feature extraction
9 Citations (Scopus)

Submodular fractional programming for balanced clustering

Kawahara, Y., Nagano, K. & Okamoto, Y., Jan 15 2011, In : Pattern Recognition Letters. 32, 2, p. 235-243 9 p.

Research output: Contribution to journalArticle

Newton-Raphson method
Experiments
23 Citations (Scopus)

Super high resolution powder diffractometer at J-PARC

Torii, S., Yonemura, M., Surya Panca Putra, T. Y., Zhang, J., Miao, P., Muroya, T., Tomiyasu, R., Morishima, T., Sato, S., Sagehashi, H., Noda, Y. & Kamiyama, T., Dec 1 2011, In : journal of the physical society of japan. 80, SUPPL. B, SB020.

Research output: Contribution to journalArticle

Open Access
diffractometers
chambers
life sciences
moderators
autumn
2010
14 Citations (Scopus)

Homotopy nilpotency in p-regular loop spaces

Kaji, S. & Kishimoto, D., Jan 1 2010, In : Mathematische Zeitschrift. 264, 1, p. 209-224 16 p.

Research output: Contribution to journalArticle

Loop Space
Nilpotency
Homotopy
Homotopy Type
Completion

Learning non-linear dynamical systems by alignment of local linear models

Joko, M., Kawahara, Y. & Yairi, T., Nov 18 2010, Proceedings - 2010 20th International Conference on Pattern Recognition, ICPR 2010. p. 1084-1087 4 p. 5595865. (Proceedings - International Conference on Pattern Recognition).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nonlinear dynamical systems
Data acquisition
Identification (control systems)
Dynamical systems

On some algebraic properties of CM-types of CM-fields and their reflexes

Tomiyasu, R., Nov 1 2010, In : Journal of Number Theory. 130, 11, p. 2442-2466 25 p.

Research output: Contribution to journalArticle

Open Access
CM-field
Torsion Points
Abelian Variety
Modulus
Theorem
10 Citations (Scopus)

Spacecraft telemetry data monitoring by dimensionality reduction techniques

Yairi, T., Inui, M., Yoshiki, A., Kawahara, Y. & Takata, N., Jan 1 2010, Proceedings of SICE Annual Conference 2010, SICE 2010 - Final Program and Papers. Society of Instrument and Control Engineers (SICE), p. 1230-1234 5 p. 5602754. (Proceedings of the SICE Annual Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Telemetering
Spacecraft
Monitoring
Satellites
2009
61 Citations (Scopus)

Change-point detection in time-series data by direct density-ratio estimation

Kawahara, Y. & Sugiyama, M., Dec 1 2009, Society for Industrial and Applied Mathematics - 9th SIAM International Conference on Data Mining 2009, Proceedings in Applied Mathematics 133. p. 385-396 12 p. (Society for Industrial and Applied Mathematics - 9th SIAM International Conference on Data Mining 2009, Proceedings in Applied Mathematics; vol. 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Change-point Detection
Time Series Data
Time series
Probability Density
Probability distributions