Presentation 2015-06-23
Lazy Transfer Leanring
Song Liu, Kenji Fukumizu,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) The concept of Transfer Learning frequently rises when one has already acquired a general-purpose classifier (e.g. human hand-writing recognizer) and want to enhance it on a similar but slightly different task (John's hand-writing recognition). In this paper, we focus on a ``lazy'' setting where an accurate general purpose probabilistic classifier is already given and the transfer algorithm is executed afterwards. We propose a novel methodology to estimate the class-posterior ratio using a sparse parametric model. The new classifier therefore is obtained by multiplying the existing classifier with the approximated posterior ratio. The usefulness of the proposed method is demonstrated via numerical and real-world experiments.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Transfer LearningDiscriminative LearningPosterior Ratio Estimation
Paper # IBISML2015-12
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 ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Lazy Transfer Leanring
Sub Title (in English)
Keyword(1) Transfer LearningDiscriminative LearningPosterior Ratio Estimation
1st Author's Name Song Liu
1st Author's Affiliation Institute of Statistical Mathematics(ISM)
2nd Author's Name Kenji Fukumizu
2nd Author's Affiliation Institute of Statistical Mathematics(ISM)
Date 2015-06-23
Paper # IBISML2015-12
Volume (vol) vol.115
Number (no) IBISML-112
Page pp.pp.75-80(IBISML),
#Pages 6
Date of Issue 2015-06-16 (IBISML)