Presentation 2016-06-13
A Method for Adding Classification Classes in Random Forests
Ryota Ozaki, Yukihiro Tsuboshita, Noriji Kato,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In estimating classes using Random Forests, it is necessary to re-create decision trees with the data of all classes when target data increases and classification classes are added. We propose a method for adding classification classes in Random Forests that does not re-create the decision trees. Leaf nodes of the proposed method have class frequency information and learning data statistics information. According to the proposed method, it is possible to learn RF with only the data of added classes by updating these information. In addition, we dynamically suppress decrease of class estimate accuracy by correcting class frequency information with the relationship between input data and the learning data statistics information.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Machine Learning / Random Forests / Deep Learning / Incremental Learning
Paper # PRMU2016-42,SP2016-8,WIT2016-8
Date of Issue 2016-06-06 (PRMU, SP, WIT)

Conference Information
Committee PRMU / SP / WIT / ASJ-H
Conference Date 2016/6/13(2days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Eisaku Maeda(NTT) / Kazunori Mano(Shibaura Inst. of Tech.) / Kiyohiko Nunokawa(Tokyo International Univ.)
Vice Chair Seiichi Uchida(Kyushu Univ.) / Hironobu Fujiyoshi(Chubu Univ.) / Hiroki Mori(Utsunomiya Univ.) / Chikamune Wada(Kyushu Inst. of Tech.)
Secretary Seiichi Uchida(Kyoto Univ.) / Hironobu Fujiyoshi(NTT) / Hiroki Mori(Kobe Univ.) / Chikamune Wada(Shizuoka Univ.) / (Nagoya Inst. of Tech.)
Assistant Masaki Oonishi(AIST) / Takuya Funatomi(NAIST) / Taichi Asami(NTT) / Kei Hashimoto(Nagoya Inst. of Tech.) / Tomohiro Amemiya(NTT) / Takeaki Shionome(Tsukuba Univ. of Tech.) / Manabi Miyagi(Tsukuba Univ. of Tech.)

Paper Information
Registration To Technical Committee on Pattern Recognition and Media Understanding / Technical Committee on Speech / Technical Committee on Well-being Information Technology / Auditory Research Meeting
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Method for Adding Classification Classes in Random Forests
Sub Title (in English)
Keyword(1) Machine Learning
Keyword(2) Random Forests
Keyword(3) Deep Learning
Keyword(4) Incremental Learning
1st Author's Name Ryota Ozaki
1st Author's Affiliation Fuji Xerox Co., Ltd.(Fuji Xerox)
2nd Author's Name Yukihiro Tsuboshita
2nd Author's Affiliation Fuji Xerox Co., Ltd.(Fuji Xerox)
3rd Author's Name Noriji Kato
3rd Author's Affiliation Fuji Xerox Co., Ltd.(Fuji Xerox)
Date 2016-06-13
Paper # PRMU2016-42,SP2016-8,WIT2016-8
Volume (vol) vol.116
Number (no) PRMU-89,SP-90,WIT-91
Page pp.pp.41-45(PRMU), pp.41-45(SP), pp.41-45(WIT),
#Pages 5
Date of Issue 2016-06-06 (PRMU, SP, WIT)