Division for Intelligent Societal Implementation of Mathmatical Computation

Research Output 1997 2019

  • 21 Article
  • 7 Conference contribution
  • 2 Paper
  • 2 Conference article
2019
Hilbert spaces
Nonlinear dynamical systems
Decomposition
Nonlinear Dynamics
Spectrum analysis

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
1 Citation (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
2017
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
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
2015

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
2014
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
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
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
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
2 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
38 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
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
13 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
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
2008
51 Citations (Scopus)

Variational calculation of second-order reduced density matrices by strong N -representability conditions and an accurate semidefinite programming solver

Nakata, M., Braams, B. J., Fujisawa, K., Fukuda, M., Percus, J. K., Yamashita, M. & Zhao, Z., May 8 2008, In : Journal of Chemical Physics. 128, 16, 164113.

Research output: Contribution to journalArticle

Hubbard model
programming
Ground state
Atoms
Dipole moment
2006
2 Citations (Scopus)

Spacecraft diagnosis method using dynamic Bayesian networks

Translated title of the contribution: Spacecraft diagnosis method using dynamic Bayesian networksKawahara, Y., Yairi, T. & Machida, K., Jan 17 2006, In : Transactions of the Japanese Society for Artificial Intelligence. 21, 1, p. 45-54 10 p.

Research output: Contribution to journalArticle

Open Access
Bayesian networks
Spacecraft
Telemetering
Electric fuses
29 Citations (Scopus)

Telemetry-mining: A machine learning approach to anomaly detection and fault diagnosis for space systems

Yairi, T., Kawahara, Y., Fujimaki, R., Sato, Y. & Machida, K., Dec 1 2006, Proceedings - SMC-IT 2006: 2nd IEEE International Conference on Space Mission Challenges for Information Technology. p. 466-473 8 p. 1659593. (Proceedings - SMC-IT 2006: 2nd IEEE International Conference on Space Mission Challenges for Information Technology; vol. 2006).

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

Telemetering
Failure analysis
Spacecraft
Learning systems
Data mining
2005
2 Citations (Scopus)

Diagnosis method for spacecraft using dynamic bayesian networks

Kawahara, Y., Yairi, T. & Machida, K., Dec 15 2005, In : European Space Agency, (Special Publication) ESA SP. 603, p. 649-656 8 p.

Research output: Contribution to journalConference article

Bayesian networks
Spacecraft
spacecraft
learning
malfunctions
1 Citation (Scopus)

Fault diagnosis for spacecraft using probabilistic reasoning and statistical learning with dynamic bayesian networks

Kawahara, Y., Yairi, T. & Machida, K., Dec 1 2005, p. 5823-5830. 8 p.

Research output: Contribution to conferencePaper

Bayesian networks
learning
Failure analysis
Spacecraft
spacecraft
2004
38 Citations (Scopus)

PHoM - A polyhedral homotopy continuation method for polynomial systems

Gunji, T., Kim, S., Kojima, M., Takeda, A., Fujisawa, K. & Mizutani, T., Jan 1 2004, In : Computing (Vienna/New York). 73, 1, p. 57-77 21 p.

Research output: Contribution to journalArticle

Homotopy Continuation Method
Polynomial Systems
Polynomials
Module
Homotopy
1999
9 Citations (Scopus)

Approximation of optimal two-dimensional association rules for categorical attributes using semidefinite programming

Fujisawa, K., Hamuro, Y., Katoh, N., Tokuyama, T. & Yada, K., Jan 1 1999, Discovery Science - 2nd International Conference, DS 1999, Proceedings. Arikawa, S. & Furukawa, K. (eds.). Springer Verlag, p. 148-159 12 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 1721).

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

Association rules
Semidefinite Programming
Association Rules
Categorical
Attribute
49 Citations (Scopus)

Semi-definite programming for topology optimization of trusses under multiple eigenvalue constraints

Ohsaki, M., Fujisawa, K., Katoh, N. & Kanno, Y., Nov 15 1999, In : Computer Methods in Applied Mechanics and Engineering. 180, 1-2, p. 203-217 15 p.

Research output: Contribution to journalArticle

trusses
Trusses
Shape optimization
programming
eigenvalues
1997
85 Citations (Scopus)

Exploiting sparsity in primal-dual interior-point methods for semidefinite programming

Fujisawa, K., Kojima, M. & Nakata, K., Oct 1 1997, In : Mathematical Programming, Series B. 79, 1-3, p. 235-253 19 p.

Research output: Contribution to journalArticle

Primal-dual Interior Point Method
Semidefinite Program
Semidefinite Programming
Sparsity
Computing