Hajime MATSUI

Linking Reversed and Dual Codes of Quasi-Cyclic Codes
Ramy TAKI ELDIN Hajime MATSUI 
Publication:   
Publication Date: 2022/03/01
Vol. E105-A  No. 3  pp. 381-388
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Coding Theory
Keyword: 
error-correcting codes, minimum distance, reversed codes, reversible codes, self-orthogonal codes, self-dual codes, 
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A Modulus Factorization Algorithm for Self-Orthogonal and Self-Dual Quasi-Cyclic Codes via Polynomial Matrices
Hajime MATSUI 
Publication:   
Publication Date: 2021/11/01
Vol. E104-A  No. 11  pp. 1649-1653
Type of Manuscript:  LETTER
Category: Coding Theory
Keyword: 
error-correcting codes, finite fields, codes over rings, Chinese remainder theorem, reciprocal polynomials, 
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Run-Length Constraint of Cyclic Reverse-Complement and Constant GC-Content DNA Codes
Ramy TAKI ELDIN Hajime MATSUI 
Publication:   
Publication Date: 2020/01/01
Vol. E103-A  No. 1  pp. 325-333
Type of Manuscript:  PAPER
Category: Coding Theory
Keyword: 
Finite fields, irreducible cyclic codes, weight distribution, trace function, rank-nullity theorem, 
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Natural Gradient Descent of Complex-Valued Neural Networks Invariant under Rotations
Jun-ichi MUKUNO Hajime MATSUI 
Publication:   
Publication Date: 2019/12/01
Vol. E102-A  No. 12  pp. 1988-1996
Type of Manuscript:  PAPER
Category: Neural Networks and Bioengineering
Keyword: 
complex number, Fisher information matrix, projected natural gradient, data augmentation, online character recognition, 
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A Modulus Factorization Algorithm for Self-Orthogonal and Self-Dual Integer Codes
Hajime MATSUI 
Publication:   
Publication Date: 2018/11/01
Vol. E101-A  No. 11  pp. 1952-1956
Type of Manuscript:  LETTER
Category: Coding Theory
Keyword: 
error-correcting codes, self-orthogonal codes, self-dual codes, codes over integer residue rings, Chinese remainder theorem, 
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A Convolution Theorem for Multiple-Valued Logic Polynomials of a Semigroup Type and Their Fast Multiplication
Hajime MATSUI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2016/06/01
Vol. E99-A  No. 6  pp. 1025-1033
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
algebraic normal forms, Boolean polynomials, Reed-Muller expansion, discrete Fourier transform, tensor product, 
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Decoding of Projective Reed-Muller Codes by Dividing a Projective Space into Affine Spaces
Norihiro NAKASHIMA Hajime MATSUI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2016/03/01
Vol. E99-A  No. 3  pp. 733-741
Type of Manuscript:  PAPER
Category: Coding Theory
Keyword: 
error-correcting codes, affine variety codes, Gröbner basis, Berlekamp-Massey-Sakata algorithm, discrete Fourier transform, 
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Computation of Grobner Basis for Systematic Encoding of Generalized Quasi-Cyclic Codes
Vo TAM VAN Hajime MATSUI Seiichi MITA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/09/01
Vol. E92-A  No. 9  pp. 2345-2359
Type of Manuscript:  PAPER
Category: Coding Theory
Keyword: 
automorphism group, Buchberger's algorithm, division algorithm, circulant matrix, finite geometry low density parity check (LDPC) codes, 
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A Simple Proof of Horiguchi's Error-Value Formula in Decoding of Alternant Codes and Its Applications
Hajime MATSUI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/08/01
Vol. E92-A  No. 8  pp. 2146-2150
Type of Manuscript:  LETTER
Category: Coding Theory
Keyword: 
Berlekamp-Massey algorithm, generalized RS codes, BCH codes, error evaluation, fast decoding, 
 Summary | Full Text:PDF