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Paper Abstract and Keywords
Presentation 2006-02-03 10:00
Improvement in precision of WWW Search Engines based on Dependency Relation between Input Keywords
Akiyo Matsumoto, Tatsuhiro Konishi (Shizuoka Univ.), Akira Takagi (CSK SYSTEMS), Teruo Koyama (NII), Yoshio Miyake (Chukyou Univ.), Yukihiro Itoh (Shizuoka Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we propose a method to improve precision of WWW search engines. When Web search
engines are used, the user inputs keywords. Web search engines accept a few keywords as a retrieval condition, and
select candidate pages based on some statistics value such as TF/IDF and so on. We think that the keywords input
by users have a semantic relation. We try to improve retrieval accuracy by checking whether two keywords have a
dependency relation in the candidate pages or not. We deal with sentence as a structure to represent dependency
relations between keywords. We construct a meta search engine which accept output of an ordinary search engine
and select plausible ones by checking dependency relation. We also show an experimental evaluation of our method.
Keyword (in Japanese) (See Japanese page) 
(in English) Information Retrieval / Natural Language Processing / Dependency Analysis / WWW / / / /  
Reference Info. IEICE Tech. Rep., vol. 105, no. 595, NLC2005-115, pp. 7-12, Feb. 2006.
Paper # NLC2005-115 
Date of Issue 2006-01-27 (NLC) 
ISSN Print edition: ISSN 0913-5685
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Conference Information
Committee NLC  
Conference Date 2006-02-02 - 2006-02-03 
Place (in Japanese) (See Japanese page) 
Place (in English) Laforet Biwako 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To NLC 
Conference Code 2006-02-NLC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Improvement in precision of WWW Search Engines based on Dependency Relation between Input Keywords 
Sub Title (in English)  
Keyword(1) Information Retrieval  
Keyword(2) Natural Language Processing  
Keyword(3) Dependency Analysis  
Keyword(4) WWW  
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1st Author's Name Akiyo Matsumoto  
1st Author's Affiliation Shizuoka University (Shizuoka Univ.)
2nd Author's Name Tatsuhiro Konishi  
2nd Author's Affiliation Shizuoka University (Shizuoka Univ.)
3rd Author's Name Akira Takagi  
3rd Author's Affiliation CSK SYSTEMS (CSK SYSTEMS)
4th Author's Name Teruo Koyama  
4th Author's Affiliation National Institute of Informatics (NII)
5th Author's Name Yoshio Miyake  
5th Author's Affiliation Chukyou University (Chukyou Univ.)
6th Author's Name Yukihiro Itoh  
6th Author's Affiliation Shizuoka University (Shizuoka Univ.)
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Speaker Author-1 
Date Time 2006-02-03 10:00:00 
Presentation Time 30 minutes 
Registration for NLC 
Paper # NLC2005-115 
Volume (vol) vol.105 
Number (no) no.595 
Page pp.7-12 
#Pages
Date of Issue 2006-01-27 (NLC) 


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