Norikazu TAKAHASHI


Gauss-Seidel HALS Algorithm for Nonnegative Matrix Factorization with Sparseness and Smoothness Constraints
Takumi KIMURA Norikazu TAKAHASHI 
Publication:   
Publication Date: 2017/12/01
Vol. E100-A  No. 12  pp. 2925-2935
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
nonnegative matrix factorizationhierarchical alternating least squares algorithmEuclidean distanceglobal convergencesparsenesssmoothness
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Necessary and Sufficient Conditions for One-Dimensional Discrete-Time Autonomous Binary Cellular Neural Networks to Be Stable
Tetsuo NISHI Norikazu TAKAHASHI Hajime HARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/12/01
Vol. E89-A  No. 12  pp. 3693-3698
Type of Manuscript:  PAPER
Category: Nonlinear Problems
Keyword: 
1-D DBCNNCNNstabilityunsymmetric connection
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An Efficient Method for Simplifying Decision Functions of Support Vector Machines
Jun GUO Norikazu TAKAHASHI Tetsuo NISHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/10/01
Vol. E89-A  No. 10  pp. 2795-2802
Type of Manuscript:  Special Section PAPER (Special Section on Nonlinear Theory and its Applications)
Category: Control, Neural Networks and Learning
Keyword: 
support vector machinesdecision functioncomplexityspan
 Summary | Full Text:PDF(467.9KB)

Necessary and Sufficient Conditions for a 1-D DBCNN with an Input to Be Stable in terms of Connection Coefficients
Tetsuo NISHI Hajime HARA Norikazu TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/10/01
Vol. E89-A  No. 10  pp. 2825-2832
Type of Manuscript:  Special Section PAPER (Special Section on Nonlinear Theory and its Applications)
Category: Control, Neural Networks and Learning
Keyword: 
1-D DBCNNCNNstabilitynonzero input
 Summary | Full Text:PDF(217.4KB)

Necessary and Sufficient Conditions for 2-Dimensional Discrete-Time Systems Described by the Signum Function to be Stable
Hajime HARA Tetsuo NISHI Norikazu TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/06/01
Vol. E87-A  No. 6  pp. 1500-1502
Type of Manuscript:  Special Section LETTER (Special Section on Papers Selected from 2003 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC 2003))
Category: 
Keyword: 
system equation of dimension 2stability conditions
 Summary | Full Text:PDF(92.9KB)

A Method for Solving Optimization Problems with Equality Constraints by Using the SPICE Program
Jun GUO Tetsuo NISHI Norikazu TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/09/01
Vol. E86-A  No. 9  pp. 2325-2332
Type of Manuscript:  Special Section PAPER (Special Section on Nonlinear Theory and its Applications)
Category: Optimization and Control
Keyword: 
HNNsoptimization problemequality constraintsenergy functionSPICE program
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Necessary and Sufficient Conditions for One-Dimensional Discrete-Time Binary Cellular Neural Networks with Unspecified Fixed Boundaries to Be Stable
Hidenori SATO Tetsuo NISHI Norikazu TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/09/01
Vol. E85-A  No. 9  pp. 2036-2043
Type of Manuscript:  Special Section PAPER (Special Section on Nonlinear Theory and Its Applications)
Category: 
Keyword: 
stability conditionone-dimensional discrete binary cellular neural networksfixed boundary
 Summary | Full Text:PDF(408.5KB)

A Generalization of Some Complete Stability Conditions for Cellular Neural Networks with Delay
Norikazu TAKAHASHI Tetsuo NISHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/09/01
Vol. E85-A  No. 9  pp. 2044-2051
Type of Manuscript:  Special Section PAPER (Special Section on Nonlinear Theory and Its Applications)
Category: 
Keyword: 
cellular neural networkdelaycomplete stability
 Summary | Full Text:PDF(265.4KB)

On the Number of Solutions of a Class of Nonlinear Equations Related to Neural Networks with Tapered Connections
Tetsuo NISHI Norikazu TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1995/10/25
Vol. E78-A  No. 10  pp. 1299-1305
Type of Manuscript:  Special Section PAPER (Special Section on Nonlinear Theory and Its Applications)
Category: 
Keyword: 
the number of solutionsnonlinear equationsneural networksequilibrium points
 Summary | Full Text:PDF(498.4KB)