* Research Areas
		CT: Coding Theory and Channel Coding
		SC: Source Coding
		IR: Information Retrieval
		DM: Data Mining
		IS: Information Security
		# : misc.
	* Publication Type
	J:	Journal Publication
	C:	Conference or Symposium Proceedings
	W:	Workshop Proceedings / Notes
	B:	Book or Book Chapter
	T:	Technical Report
	#:	misc.
	(*)	Refereed
		† IEEE,IPSJでは，論文誌等に掲載された論文のPDFファイルを著者のページに掲載することが認められています．
		IEICEに対しては論文掲載の許諾を得ています．詳細はIEEE,IEICE,IPSJをご参照下さい．
		IEEE:  Institute of Electrical and Electronic Engineers
		IEICE: The institute of Electronics, Information and Communication Engineering
		（ IEICE Transactions Online: http://search.ieice.org/ )
		IPSJ:  Information Processing Society of Japan
	2009年度
	Type	Author	CT	SC	IR	DM	IS	m	Download	Download
		Title
		Source
	C	Masao Kasahara and Shigeichi Hirasawa
		Constructions of a large class of optimum linear codes for small number of information symbols
		IEICE, Technical Report. Vol. 109 , no. 444, IT2009-137  pp.419-426, Nagano, Mar. 4-5, 2010.
	C(*)	Shunsuke Horii, Toshiyasu Matsuhima, and Shigeichi Hirasawa
		A note on the branch-and-cut approach to decoding linear block code
		Proc. of 2010 International Workshop on Nonlinear Circuits, Communication and Signal Processing (NCSP'10), pp.321-324, 2010.
	C(*)	Tomohiko Saito, Yoshifumi Ukita, Toshiyasu Matsushima, and Shigeichi Hirasawa
		A linear programming bound for unequal error protection codes
		Proceedings of the 2010 Australian Communications Theory Workshop, pp.24-29, 2010.
	C	Gou Hosoya, Toshiyasu Matsuhima, and Shigeichi Hirasawa
		A note on analysing LDPC codes for correcting a burst erasure
		IEICE Technical Report, vol.109, no.357, IT2009-52, pp.7--10, Jan. 2010.
	C(*)	Shigeichi Hirasawa								pdf
		Student questionnaire analyses for class management based on document clustering and classification algorithms
		Key note speech at the 2009 International Conference on Digital Content, Dec. 17-18, 2009, Chung-Li, Taiwan, R.O.C.
	C	Tomohiko Saito, Yoshifumi Ukita, Toshiyasu Matsushima, and Shigeichi Hirasawa							pdf
		A linear programming bound for unequal error protection codes
		第32回情報理論とその応用シンポジウム予稿集, pp.359-364, 2009.
	C	堀井 俊佑, 松嶋 敏泰, 平澤 茂一							pdf
		分枝カット法に基づいた線形符号の復号法に関する一考察
		第32回情報理論とその応用シンポジウム予稿集, pp.569-573, 2009.
	C(*)	Daiki Koizumu, Toshiyasu Matushima, and Shigeichi Hirasawa
		On the hyperparameter estimation of time varying poisson model for Bayesian WWW traffic forecasting
		Proc. of 2nd International Workshop of the European Research Consortium on Infomatics and Mathematics (ERCIM) Working Group on Computing & Statistics, p.22, Oct, 2009.
	C(*)	Yoshifumi Ukita, Tomohiko Saito, Toshiyasu Matushima, and Shigeichi Hirasawa
		A note on the relation between a sampling theorem for functions over a GF(q)^n domain and linear codes
		IEEE International Conference on Systems, Man, and Cybernetics, San Antonio, Texas, USA, pp.2665-2670, Oct. 11-14, 2009.
	J(*)	Gou Hosoya, Hideki Yagi, Manabu Kobayashi, and Shigeichi Hirasawa							pdf
		Adaptive decoding algorithms for low-density parity-check codes over the binary erasure channel
		IEICE Trans. Fundamentals, no.10, pp.2418--2430, vol.E-92, Oct. 2009.
	C(*)	Daiki Koizumu, Toshiyasu Matushima, and Shigeichi Hirasawa							pdf
		Bayesian forecasting of WWW traffic on the time varying poisson model
		Proc. of The 2009 International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA'09), pp.683-689, Jul, 2009.
	T	谷口 祐樹, 細谷 剛, 後藤 正幸, 平澤茂一
		メッセージ伝播型復号法に効果的な非正則LDPC符号の構成法と復号順序の決定法
		電子情報通信学会, 技術研究報告, vol.109, no.143, IT2009-11, pp.31--36, 2009年7月.
	T	寺本 賢一, 細谷 剛, 後藤 正幸, 平澤茂一
		一般化LDPC符号に対する部分符号の構造を利用した効率的な符号化法
		電子情報通信学会, 技術研究報告, vol.109, no.143, IT2009-10, pp.25--30, 2009年7月.
	C(*)	Takashi Ishida, Hisashi Hamada, Gendo Kumoi, Masayuki Goto, and Shigeichi Hirasawa							pdf
		Student questionnaire analyses using the clustering method based on the PLSI model
		Proc. of the 2009 International Conference in Management Sciences and Decision Making (2009 ICMSDM), Taipei, R.O.C., May, 2009.
	C(*)	Gendoh Kumoi, Takashi Ishida, Masayuki Goto, and Shigeichi Hirasawa							pdf
		Document classification methods with a small-size training set
		Proc. of the 2009 International Conference in Management Sciences and Decision Making (2009 ICMSDM), Taipei, R.O.C., May, 2009.
	C(*)	Makoto Suzuki, Yi-Ching Tsai, Takashi Ishida, Masayuki Goto, and Shigeichi Hirasawa							pdf
		Refinement of feature terms and improvement of classification accuracy on multilingual text categorization using character N-gram
		Proc. of the 2009 International Conference in Management Sciences and Decision Making (2009 ICMSDM), Taipei, R.O.C., May, 2009.
	C(*)	Yi-Ching Tsai, Makoto Suzuki, Takashi Ishida, and Shigeichi Hirasawa							pdf
		Detecting methods of the plagiarism for student reports using text processing
		Proc. of the 2009 International Conference in Management Sciences and Decision Making (2009 ICMSDM), Taipei, R.O.C., May, 2009.