Hideyuki IMAI


Shift Invariance Property of a Non-Negative Matrix Factorization
Hideyuki IMAI 
Publication:   
Publication Date: 2020/02/01
Vol. E103-A  No. 2  pp. 580-581
Type of Manuscript:  LETTER
Category: General Fundamentals and Boundaries
Keyword: 
non-negative matrix factorizationsemi non-negative matrix factorizationparallel moving
 Summary | Full Text:PDF(191.7KB)

A Fast Cross-Validation Algorithm for Kernel Ridge Regression by Eigenvalue Decomposition
Akira TANAKA Hideyuki IMAI 
Publication:   
Publication Date: 2019/09/01
Vol. E102-A  No. 9  pp. 1317-1320
Type of Manuscript:  LETTER
Category: Numerical Analysis and Optimization
Keyword: 
kernel ridge regressionmodel selectionhyperparametercross-validation
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Theoretical Analyses on 2-Norm-Based Multiple Kernel Regressors
Akira TANAKA Hideyuki IMAI 
Publication:   
Publication Date: 2017/03/01
Vol. E100-A  No. 3  pp. 877-887
Type of Manuscript:  PAPER
Category: Neural Networks and Bioengineering
Keyword: 
multiple kernel regressorreproducing kernel Hilbert spacegeneralization error2-norm criterion2-norm regularizer
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An Online Self-Constructive Normalized Gaussian Network with Localized Forgetting
Jana BACKHUS Ichigaku TAKIGAWA Hideyuki IMAI Mineichi KUDO Masanori SUGIMOTO 
Publication:   
Publication Date: 2017/03/01
Vol. E100-A  No. 3  pp. 865-876
Type of Manuscript:  PAPER
Category: Neural Networks and Bioengineering
Keyword: 
Normalized Gaussian Networksdynamic model selectiononline learningchaotic time series forecasting
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Ensemble and Multiple Kernel Regressors: Which Is Better?
Akira TANAKA Hirofumi TAKEBAYASHI Ichigaku TAKIGAWA Hideyuki IMAI Mineichi KUDO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/11/01
Vol. E98-A  No. 11  pp. 2315-2324
Type of Manuscript:  PAPER
Category: Neural Networks and Bioengineering
Keyword: 
kernel regressionensemble kernel regressormultiple kernel regressorgeneralization errorreproducing kernel Hilbert spaces
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Parametric Wiener Filter with Linear Constraints for Unknown Target Signals
Akira TANAKA Hideyuki IMAI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/01/01
Vol. E97-A  No. 1  pp. 322-330
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
parametric Wiener filterlinear constraintsoptimization criterionclosed-form solution
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A Unified Framework of Subspace Identification for D.O.A. Estimation
Akira TANAKA Hideyuki IMAI Masaaki MIYAKOSHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/02/01
Vol. E90-A  No. 2  pp. 419-428
Type of Manuscript:  PAPER
Category: Engineering Acoustics
Keyword: 
D.O.A. estimationspatial correlation matrixsignal subspacenoise subspaceproper and improper eigenvectors
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On Formulations and Solutions in Linear Image Restoration Problems
Akira TANAKA Hideyuki IMAI Masaaki MIYAKOSHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/08/01
Vol. E87-A  No. 8  pp. 2144-2151
Type of Manuscript:  PAPER
Category: Image
Keyword: 
image restorationformulation of the optimalityoptimization criterion
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Enhanced Interval Splitting and Bounding for Global Optimization
Ronald WAWERU MWANGI Hideyuki IMAI Yoshiharu SATO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/08/01
Vol. E87-A  No. 8  pp. 2120-2125
Type of Manuscript:  PAPER
Category: Numerical Analysis and Optimization
Keyword: 
branch and boundinterval inclusion propertiesNewton methodquadratic method
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Multidimensional Global Optimization Using Interval Slopes
Ronald Waweru MWANGI Hideyuki IMAI Yoshiharu SATO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/11/01
Vol. E86-A  No. 11  pp. 2836-2843
Type of Manuscript:  PAPER
Category: Numerical Analysis and Optimization
Keyword: 
convexityinterval slopesmonotonicityNewton methodquadratic method
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Parameter Estimation and Image Restoration Using the Families of Projection Filters and Parametric Projection Filters
Hideyuki IMAI Yuying YUAN Yoshiharu SATO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/08/01
Vol. E85-A  No. 8  pp. 1966-1969
Type of Manuscript:  LETTER
Category: Digital Signal Processing
Keyword: 
family of projection filtersfamily of parametric projection filtersconstrained least squares filters
 Summary | Full Text:PDF(131.3KB)

Choosing the Parameter of Image Restoration Filters by Modified Subspace Information Criterion
Akira TANAKA Hideyuki IMAI Masaaki MIYAKOSHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/05/01
Vol. E85-A  No. 5  pp. 1104-1110
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
image restorationparametersubspace information criterionsquared errorunbiased estimator
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The Family of Regularized Parametric Projection Filters for Digital Image Restoration
Hideyuki IMAI Akira TANAKA Masaaki MIYAKOSHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/03/25
Vol. E82-A  No. 3  pp. 527-534
Type of Manuscript:  PAPER
Category: Image Theory
Keyword: 
family of projection filtersfamily of parametric projection filtersregularization theory
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On Restoration of Overlapping Images
Hideyuki IMAI Yasuhisa NAKATA Masaaki MIYAKOSHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1997/12/25
Vol. E80-D  No. 12  pp. 1190-1194
Type of Manuscript:  PAPER
Category: Image Processing,Computer Graphics and Pattern Recognition
Keyword: 
image restorationlinear constraintPartial Projection Filter
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The Family of Parametric Projection Filters and Its Properties for Perturbation
Hideyuki IMAI Akira TANAKA Masaaki MIYAKOSHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1997/08/25
Vol. E80-D  No. 8  pp. 788-794
Type of Manuscript:  PAPER
Category: Image Processing,Computer Graphics and Pattern Recognition
Keyword: 
image restorationparametric filtersperturbation
 Summary | Full Text:PDF(454KB)