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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| IT | 2007-05-18 14:50 |
Yamagata | Denkoku-No-Mori (Yonezawa) | A Symbol Grouping Method of Shuffled BP Algorithm for LDPC Codes Yoshiyuki Sato, Gou Hosoya, Hideki Yagi, Shigeichi Hirasawa (Waseda Univ.)  IT2007-3 |
The combination of the Low-Density Parity-Check (LDPC) codes and the iterative decoding algorithm has shown high perform... [more] | IT2007-3 pp.13-18 |
| IT | 2007-05-18 16:40 |
Yamagata | Denkoku-No-Mori (Yonezawa) | On the Condition of Achievable Overflow Thresholds for the Parametric Compound Source Ryo Nomura (Aoyama Gakuin Univ.), Toshiyasu Matsushima, Shigeichi Hirasawa (Waseda Univ.) IT2007-7 |
In the previous result, we generalized the achievability of variable-length coding from two viewpoints. One is the defin... [more] | IT2007-7 pp.37-41 |
| IT | 2006-05-24 14:50 |
Nara | Nara-ken new public hall | A New Class of Traceability Codes for Digital Fingerprinting Hideki Yagi, Toshiyasu Matsushima, Shigeichi Hirasawa (Waseda Univ.) |
In this paper, we discuss collusion-secure traceability codes for digital fingerprinting which is a technique for copyri... [more] | IT2006-9 pp.13-18 |
| IT | 2006-05-25 10:55 |
Nara | Nara-ken new public hall | The Reliability based Hybrid ARQ Scheme with both the Encoded Parity Bit Retransmissions and Message Passing Decoding Daiki Koizumi, Naoto Kobayashi, Toshiyasu Matsushima, Shigeichi Hirasawa (Waseda Univ.) |
[more] | IT2006-17 pp.23-28 |
| WBS, IT, ISEC | 2006-03-17 09:20 |
Aichi | Nagoya Univ. | A Modification Method for Constructing Low-Density Parity-Check Codes for Burst Erasures Gou Hosoya, Hideki Yagi, Toshiyasu Matsushima, Shigeichi Hirasawa (Waseda Univ.) |
[more] | IT2005-121 ISEC2005-178 WBS2005-135 pp.153-158 |
| IT | 2005-09-27 13:55 |
Fukushima | Aizu Univ. | A Study of Reliability Based Hybrid ARQ Schemes Using a Recursive Systematic Convolutional Code Naoto Kobayashi, Daiki Koizumi, Toshiyasu Matsushima, Shigeichi Hirasawa (Waseda Univ.) |
The Reliability Based Hybrid ARQ (RBH-ARQ) is one of hybrid ARQ schemes. In the RBH-ARQ, the modified feedback is compo... [more] |
IT2005-52 pp.7-11 |
| IT | 2005-09-27 14:20 |
Fukushima | Aizu Univ. | A Relation Between Erasure Correcting And Error Correcting of Low-Density Parity-Check Codes Gou Hosoya, Toshiyasu Matsushima, Shigeichi Hirasawa (Waseda Univ.) |
[more] | IT2005-53 pp.13-17 |
| IT | 2005-09-27 17:05 |
Fukushima | Aizu Univ. | Development of certificate verification system for mobile services Katsuyuki Umezawa, Aya Takahashi, Hiroki Uchiyama, Mitsuhiro Oikawa, Hisao Sakazaki, Mitsuhiro Oikawa, Seiichi Susaki (Hitachi, Ltd.), Shigeichi Hirasawa (Waseda Univ.) |
It is indispensable to verify a public key certificate strictly in order to check a communication partner's justificatio... [more] | IT2005-59 pp.49-54 |
| IT | 2005-07-21 14:45 |
Osaka | Osaka Prefecture Univ. | A Decoding Algorithm for q-ary Turbo Codes by Deleting Trellis Branches Yu Hasegawa, Gou Hosoya, Hideki Yagi, Shigeichi Hirasawa (Waseda Univ.) |
[more] | IT2005-37 pp.9-14 |
| IT | 2005-07-22 14:30 |
Osaka | Osaka Prefecture Univ. | A PPM* algorithm using context mixture Hiroyuki Anase, Kazuhiro Keshi, Takashi Ishida, Shigeichi Hirasawa (Waseda Univ.) |
[more] | IT2005-48 pp.35-40 |
| IT | 2005-05-26 13:30 |
Overseas | Univ. of Hawaii | Fast Algorithm for Generating Candidate Codewords in Reliability-Based Maximum Likelihood Decoding Hideki Yagi, Toshiyasu Matsushima, Shigeichi Hirasawa (Waseda Univ.) |
The reliability-based heuristic search methods for maximum likelihood decoding (MLD) generate test error patterns (or, e... [more] | IT2005-13 pp.1-6 |
| IT | 2005-05-26 14:10 |
Overseas | Univ. of Hawaii | A Note on the Construction of Nonlinear Unequal Orthogonal Arrays from Error-Correcting Codes Tomohiko Saito, Toshiyasu Matsushima, Shigeichi Hirasawa (Waseda Univ.) |
[more] | IT2005-15 pp.13-18 |
| IT | 2005-05-27 10:10 |
Overseas | Univ. of Hawaii | A Study of Reliability Based Hybrid ARQ Scheme with Bitwise Posterior Probability Evaluation from Message Passing Algorithm Daiki Koizumi, Naoto Kobayashi, Toshiyasu Matsushima, Shigeichi Hirasawa (Waseda Univ.) |
Reliability Based Hybrid ARQ (RBH-ARQ) is one of hybrid ARQ schemes with the modified decision feedback. In RBH-ARQ, the... [more] | IT2005-24 pp.11-16 |
| IT | 2004-07-28 14:30 |
Chiba | Tokyo Univ. (Kashiwa) | Data compression by LZW method using the number of references Kazuhiro Keshi, Koji Yoshida, Takashi Ishida, Shigeichi Hirasawa (Waseda Univ.) |
In the field of data compression, it is known that LZW method achieves the asymptotically optimum compression even when ... [more] | IT2004-10 pp.11-16 |
| IT | 2004-07-28 15:30 |
Chiba | Tokyo Univ. (Kashiwa) | Still Image Compression Considering Signal Importance after Frequency Transform Ryo Morinaka, Akihisa Ohi, Takashi Ishida, Shigeichi Hirasawa (Waseda Univ.) |
[more] | IT2004-12 pp.23-28 |
| IT | 2004-07-29 14:20 |
Chiba | Tokyo Univ. (Kashiwa) | Complexity Reduction Method of Suboptimal Maximum Likelihood Decoding Algorithm for Tail-Biting Convolutional Codes Tadashi Sato, Hideki Yagi, Shigeichi Hirasawa (Waseda Univ.) |
[more] | IT2004-25 pp.41-46 |
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