Presentation 2019-12-04
The Feature Analysis and Automatic Classification on Contracts Text Data
Mina Fujii, Yasuhiro Iwaki, Tsuneaki Kato,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Currently, automation of legal tasks, such as drafting or reviewing contracts, is highly needed because these tasks cost companies a lot of time. In this paper, as the first step for tackling this problem, we analyzed the vocabulary of Japanese contract data by comparing them with non-contract data, and elucidated that distinctive expressions and vocabularies are used in them. In addition, we tried classification of articles of contracts by unsupervised learning, and confirmed the results are similar to the classification by legal experts.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Natural Language Processing / Contract Text / Feature Analysis / Clustering
Paper # NLC2019-30
Date of Issue 2019-11-27 (NLC)

Conference Information
Committee NLC / IPSJ-NL / SP / IPSJ-SLP
Conference Date 2019/12/4(3days)
Place (in Japanese) (See Japanese page)
Place (in English) NHK Science & Technology Research Labs.
Topics (in Japanese) (See Japanese page)
Topics (in English) The 6th Natural Language Processing Symposium & The 21th Spoken Language Symposium
Chair Takeshi Sakaki(Hottolink) / / Hisashi Kawai(NICT)
Vice Chair Mitsuo Yoshida(Toyohashi Univ. of Tech.) / Kazutaka Shimada(Kyushu Inst. of Tech.) / / Akinobu Ri(Nagoya Inst. of Tech.)
Secretary Mitsuo Yoshida(Ryukoku Univ.) / Kazutaka Shimada(NTT) / / Akinobu Ri(Kyoto Univ.) / (Waseda Univ.)
Assistant Takeshi Kobayakawa(NHK) / Hiroki Sakaji(Univ. of Tokyo) / / Tomoki Koriyama(Univ. of Tokyo) / Yusuke Ijima(NTT)

Paper Information
Registration To Technical Committee on Natural Language Understanding and Models of Communication / Special Interest Group on Natural Language / Technical Committee on Speech / Special Interest Group on Spoken Language Processing
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) The Feature Analysis and Automatic Classification on Contracts Text Data
Sub Title (in English) *
Keyword(1) Natural Language Processing
Keyword(2) Contract Text
Keyword(3) Feature Analysis
Keyword(4) Clustering
1st Author's Name Mina Fujii
1st Author's Affiliation GVA TECH K.K.(GVA TECH)
2nd Author's Name Yasuhiro Iwaki
2nd Author's Affiliation GVA TECH K.K.(GVA TECH)
3rd Author's Name Tsuneaki Kato
3rd Author's Affiliation The University of Tokyo(The Univ. of Tokyo)
Date 2019-12-04
Paper # NLC2019-30
Volume (vol) vol.119
Number (no) NLC-320
Page pp.pp.7-12(NLC),
#Pages 6
Date of Issue 2019-11-27 (NLC)