Presentation 2015-06-23
Risk Bound of Lasso Based on MDL Theory
Masanori Kawakita, Yushin Toyokihara, Jun'ichi Takeuchi,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) We derive a risk bound of lasso in random design linear regression. Pastworks of MDL principle revealed that penalized maximum likelihood methodscan be interpreted as a two stage coding procedure and have a redundancyrisk bound. Barron et. al. derived a risk bound of lasso in fixed designlinear regression by extending those past works. To assess thegeneralization error, however, we need to consider the random designsetting, which is much more difficult. We give a risk bound (and aregret bound) of lasso in random design cases under normality ofcovariates as a first step.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) lasso / risk bound / MDL principle / two stage coding
Paper # IBISML2015-16
Date of Issue 2015-06-16 (IBISML)

Conference Information
Committee NC / IPSJ-BIO / IBISML / IPSJ-MPS
Conference Date 2015/6/23(3days)
Place (in Japanese) (See Japanese page)
Place (in English) Okinawa Institute of Science and Technology
Topics (in Japanese) (See Japanese page)
Topics (in English) Machine Learning Approach to Biodata Mining, and General
Chair Toshimichi Saito(Hosei Univ.) / Masakazu Sekijima(東工大) / Takashi Washio(Osaka Univ.) / Hayaru Shouno(電通大)
Vice Chair Shigeo Sato(Tohoku Univ.) / / Kenji Fukumizu(ISM) / Masashi Sugiyama(Tokyo Inst. of Tech.)
Secretary Shigeo Sato(Kyushu Inst. of Tech.) / (Kyoto Sangyo Univ.) / Kenji Fukumizu(京大) / Masashi Sugiyama(お茶の水女子大) / (OIST)
Assistant Hiroyuki Kanbara(Tokyo Inst. of Tech.) / Hisanao Akima(Tohoku Univ.) / / Koji Tsuda(Univ. of Tokyo) / Hisashi Kashima(Kyoto Univ.)

Paper Information
Registration To Technical Committee on Neurocomputing / Special Interest Group on Bioinformatics and Genomics / Technical Committee on Infomation-Based Induction Sciences and Machine Learning / Special Interest Group on Mathematical Modeling and Problem Solving
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Risk Bound of Lasso Based on MDL Theory
Sub Title (in English)
Keyword(1) lasso
Keyword(2) risk bound
Keyword(3) MDL principle
Keyword(4) two stage coding
1st Author's Name Masanori Kawakita
1st Author's Affiliation Kyushu University(Kyushu Univ.)
2nd Author's Name Yushin Toyokihara
2nd Author's Affiliation Kyushu University(Kyushu Univ.)
3rd Author's Name Jun'ichi Takeuchi
3rd Author's Affiliation Kyushu University(Kyushu Univ.)
Date 2015-06-23
Paper # IBISML2015-16
Volume (vol) vol.115
Number (no) IBISML-112
Page pp.pp.101-107(IBISML),
#Pages 7
Date of Issue 2015-06-16 (IBISML)