Division for Intelligent Societal Implementation of Mathmatical Computation

Research Output 1997 2019

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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

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

Principal points analysis via p-median problem for binary data

Yamashita, H. & Kawahara, Y., Jan 1 2019, (Accepted/In press) In : Journal of Applied Statistics.

Research output: Contribution to journalArticle

Principal Points
P-median Problem
Lagrangian Relaxation
Binary Data
Subgradient

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)

Automatically recognizing strategic cooperative behaviors in various situations of a team sport

Hojo, M., Fujii, K., Inaba, Y., Motoyasu, Y. & Kawahara, Y., Dec 2018, In : PloS one. 13, 12, e0209247.

Research output: Contribution to journalArticle

Open Access
Sports
sports
cooperatives
Cooperative Behavior
Labels

Z-MEM, Maximum Entropy Method software for electron/nuclear density distribution in Z-Code

Ishikawa, Y., Zhang, J., Kiyanagi, R., Yonemura, M., Matsukawa, T., Hoshikawa, A., Ishigaki, T., Torii, S., Oishi-Tomiyasu, R. & Kamiyama, T., Dec 15 2018, In : Physica B: Condensed Matter. 551, p. 472-475 4 p.

Research output: Contribution to journalArticle

Maximum entropy methods
maximum entropy method
density distribution
computer programs
Electrons
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

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

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
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
2013
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
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
11 Citations (Scopus)
Crystal lattices
Lattice constants
lattice parameters
Observation
Powders
2011
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
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

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

Oishi-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
2008

Change-point detection algorithms based on subspace methods

Kawahara, Y., Yairi, T. & Machida, K., Apr 14 2008, In : Transactions of the Japanese Society for Artificial Intelligence. 23, 2, p. 76-84 9 p.

Research output: Contribution to journalArticle

Time series
Observability
Experiments
19 Citations (Scopus)
Polynomials
Computer simulation
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
17 Citations (Scopus)

A parallel primal-dual interior-point method for semidefinite programs using positive definite matrix completion

Nakata, K., Yamashita, M., Fujisawa, K. & Kojima, M., Jan 1 2006, In : Parallel Computing. 32, 1, p. 24-43 20 p.

Research output: Contribution to journalArticle

Matrix Completion
Primal-dual Interior Point Method
Semidefinite Program
Positive definite matrix
Equality Constraints
Classifying Space
Compact Lie Group
Gauge Group
Less than or equal to
Function Space
8 Citations (Scopus)

PHoMpara - Parallel implementation of the polyhedral homotopy continuation method for polynomial systems

Gunji, T., Kim, S., Fujisawa, K. & Kojima, M., Jun 1 2006, In : Computing (Vienna/New York). 77, 4, p. 387-411 25 p.

Research output: Contribution to journalArticle

Homotopy Continuation Method
Polynomial Systems
Parallel Implementation
Polynomials
Homotopy
3 Citations (Scopus)

Preprocessing sparse semidefinite programs via matrix completion

Fujisawa, K., Fukuda, M. & Nakata, K., Feb 1 2006, In : Optimization Methods and Software. 21, 1, p. 17-39 23 p.

Research output: Contribution to journalArticle

Matrix Completion
Semidefinite Program
Mathematical programming
Preprocessing
Experiments
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
2005

On the nilpotency of rational H-spaces

Kaji, S., Oct 1 2005, In : Journal of the Mathematical Society of Japan. 57, 4, p. 1153-1165 13 p.

Research output: Contribution to journalArticle

Nilpotency
H-space
Calculate
Invariant
Minimal Model
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
2003
82 Citations (Scopus)

Exploiting sparsity in semidefinite programming via matrix completion II: Implementation and numerical results

Nakata, K., Fujisawa, K., Fukuda, M., Kojima, M. & Murota, K., Feb 1 2003, In : Mathematical Programming, Series B. 95, 2, p. 303-327 25 p.

Research output: Contribution to journalArticle

Matrix Completion
Semidefinite Program
Semidefinite Programming
Sparsity
Positive Semidefinite Matrix
2002
13 Citations (Scopus)
Homotopy
Duality theory
Linear program
Simplex method
Polynomials
1999
51 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
1998
1 Citation (Scopus)

The life span method - A new variant of local search

Kubo, M. & Fujisawa, K., Jan 1 1998, In : Japan Journal of Industrial and Applied Mathematics. 15, 3, p. 363-393 31 p.

Research output: Contribution to journalArticle

Life Span
Combinatorial optimization
Local Search
Combinatorial Optimization Problem
Traveling salesman problem
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