Presentation 2005-09-21
A keyword extraction method by document expansion
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Abstract(in English) Keyword extraction is one of the technology useful for information retrieval. Currently, there is keyword extraction method using Adaptaion. This method has problem that its precision becomes low when the document length in a corpus is short. In such situation, we cannot estimate Adaptation well. In this research, we have tried to make documents long virtually using a information retrieval system. Then, we investigated whether the precision of keyword extraction would be improved by document expansion. But the improvement is not so large. We discovered new one side that the key word that specialized in non-general field can extract. Therefore, it could conclude that we were able to show the utility of the document expansion.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Document expansion / Phrase / Compound word / Adaptaion / Keyword extraction
Paper # NLC2005-27,PRMU2005-54
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Conference Information
Committee PRMU
Conference Date 2005/9/14(1days)
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Paper Information
Registration To Pattern Recognition and Media Understanding (PRMU)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A keyword extraction method by document expansion
Sub Title (in English)
Keyword(1) Document expansion
Keyword(2) Phrase
Keyword(3) Compound word
Keyword(4) Adaptaion
Keyword(5) Keyword extraction
1st Author's Name Kenta NAGAMACHI
1st Author's Affiliation Toyohashi University of Technology()
2nd Author's Name Yoshiyuki TAKEDA
2nd Author's Affiliation Toyohashi University of Technology
3rd Author's Name Kyoji UMEMURA
3rd Author's Affiliation Toyohashi University of Technology
Date 2005-09-21
Paper # NLC2005-27,PRMU2005-54
Volume (vol) vol.105
Number (no) 301
Page pp.pp.-
#Pages 6
Date of Issue