Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 56

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323
IEICE Trans

Ken-ichi IWATA

Properties of Optimal k-Bit Delay Decodable Alphabetic Codes
Kengo HASHIMOTO Ken-ichi IWATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2025/03/01
Vol. E108-A  No. 3  pp. 384-404
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Source Coding and Data Compression
Keyword: 
data compression, source coding, decoding delay, alphabetic code, code-tuple, 
 Summary | Full Text:PDF
Properties of k-Bit Delay Decodable Codes
Kengo HASHIMOTO Ken-ichi IWATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2024/03/01
Vol. E107-A  No. 3  pp. 417-447
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Source Coding and Data Compression
Keyword: 
data compression, source coding, decoding delay, 
 Summary | Full Text:PDF
FOREWORD
Ken-ichi IWATA Hiroshi KAMABE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2022/03/01
Vol. E105-A  No. 3  pp. 344-344
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF
Lossless Data Compression via Substring Enumeration for k-th Order Markov Sources with a Finite Alphabet
Ken-ichi IWATA Mitsuharu ARIMURA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2016/12/01
Vol. E99-A  No. 12  pp. 2130-2135
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Source Coding and Data Compression
Keyword: 
lossless data compression, universal source coding, data compression via substring enumeration, k-th order Markov sources, maximum redundancy, 
 Summary | Full Text:PDF
Evaluation of Maximum Redundancy of Data Compression via Substring Enumeration for k-th Order Markov Sources
Ken-ichi IWATA Mitsuharu ARIMURA Yuki SHIMA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/08/01
Vol. E97-A  No. 8  pp. 1754-1760
Type of Manuscript:  PAPER
Category: Information Theory
Keyword: 
lossless data compression, universal source coding, data compression via substring enumeration, k-th order Markov sources, maximum redundancy, 
 Summary | Full Text:PDF
Redundancy-Optimal FF Codes for a General Source and Its Relationships to the Rate-Optimal FF Codes
Mitsuharu ARIMURA Hiroki KOGA Ken-ichi IWATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/12/01
Vol. E96-A  No. 12  pp. 2332-2342
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Source Coding
Keyword: 
fixed-to-fixed length source coding, information-spectrum methods, general sources, coding rate, redundancy, 
 Summary | Full Text:PDF
A Characterization of Optimal FF Coding Rate Using a New Optimistically Optimal Code
Mitsuharu ARIMURA Hiroki KOGA Ken-ichi IWATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/12/01
Vol. E96-A  No. 12  pp. 2443-2446
Type of Manuscript:  Special Section LETTER (Special Section on Information Theory and Its Applications)
Category: Source Coding
Keyword: 
information spectrum, general source, FF code, optimistic achievable coding rate, 
 Summary | Full Text:PDF
Optimal Synthesis of a Class of 2-D Digital Filters with Minimum L2-Sensitivity and No Overflow Oscillations
Takao HINAMOTO Ken-ichi IWATA Osemekhian I. OMOIFO Shuichi OHNO Wu-Sheng LU 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/07/01
Vol. E89-A  No. 7  pp. 1987-1994
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
L2-sensitivity minimization, L2-scaling constraints, no overflow oscillations, optimal synthesis, a class of 2-D state-space digital filters, 
 Summary | Full Text:PDF
Information-Spectrum Characterization of Multiple-Access Channels with Correlated Sources
Ken-ichi IWATA Yasutada OOHAMA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/11/01
Vol. E88-A  No. 11  pp. 3196-3202
Type of Manuscript:  PAPER
Category: Information Theory
Keyword: 
information spectrum, joint source-channel coding, multiple-access channel with correlated sources, 
 Summary | Full Text:PDF
Information-Spectrum Characterization of Broadcast Channel with General Source
Ken-ichi IWATA Yasutada OOHAMA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/10/01
Vol. E88-A  No. 10  pp. 2808-2818
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Information Theory
Keyword: 
general sources, general broadcast channels, information spectrum, joint source-channel coding, transmissibility, capacity region, mixed channel, 
 Summary | Full Text:PDF
Channel Coding Algorithm Simulating the Random Coding
Ken-ichi IWATA Jun MURAMATSU 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/06/01
Vol. E87-A  No. 6  pp. 1576-1582
Type of Manuscript:  PAPER
Category: Information Theory
Keyword: 
channel coding, random coding, simulated random coding algorithm, channel coding with random number generator, 
 Summary | Full Text:PDF
An Information-Spectrum Approach to Rate-Distortion Function with Side Information
Ken-ichi IWATA Jun MURAMATSU 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/06/01
Vol. E85-A  No. 6  pp. 1387-1395
Type of Manuscript:  PAPER
Category: Information Theory
Keyword: 
rate-distortion with side information, information spectrum, fixed-length coding, maximum distortion criterion, mixed source, 
 Summary | Full Text:PDF
A Simple Parallel Algorithm for the Ziv-Lempel Encoding
Ken-ichi IWATA Masakatu MORII Tomohiko UYEMATSU Eiji OKAMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/04/25
Vol. E81-A  No. 4  pp. 709-712
Type of Manuscript:  LETTER
Category: Information Theory and Coding Theory
Keyword: 
parallel encoding, sliding-window Ziv-Lempel algorithm, longest-matched string, universal data compression, 
 Summary | Full Text:PDF
An Efficient Universal Coding Algorithm for Noiseless Channel with Symbols of Unequal Cost
Ken-ichi IWATA Masakatu MORII Tomohiko UYEMATSU 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/11/25
Vol. E80-A  No. 11  pp. 2232-2237
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Source Coding
Keyword: 
noiseless coding, additive cost of code symbol, universally optimal cost coding, Ziv-Lempel coding, Varn coding, 
 Summary | Full Text:PDF