DocumentCode :
3422983
Title :
Differential index update in cooperative search engine
Author :
Sato, Nobuyoshi ; Uehara, Minoru
Author_Institution :
Plant Regul. Res. Center, Toyo Univ., Saitama, Japan
fYear :
2004
fDate :
30 Aug.-3 Sept. 2004
Firstpage :
302
Lastpage :
307
Abstract :
Cooperative search engine (CSE) is a distributed search engine, which can update index in very short time for the purpose of fresh information retrieval. Although CSE´s retrieval response time is longer than general centralized search engines, we develop some techniques to accelerate CSE´s retrieval response time. As a routine work, CSE finds new documents and new words, and updates the index. In this daily update process, removed documents and words were not considered due to update processing speed. So we develop a new daily update process, differential update. Differential update considers added, modified and removed documents and words. We describe the behavior and evaluation of the differential update.
Keywords :
Internet; cooperative systems; database indexing; distributed databases; document handling; information retrieval; search engines; Internet; cooperative search engine; differential index update; distributed search engine; information retrieval; Abstracts; Acceleration; Databases; Delay; Distributed computing; Information retrieval; Least squares approximation; Metasearch; Protocols; Search engines;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Database and Expert Systems Applications, 2004. Proceedings. 15th International Workshop on
ISSN :
1529-4188
Print_ISBN :
0-7695-2195-9
Type :
conf
DOI :
10.1109/DEXA.2004.1333490
Filename :
1333490
Link To Document :
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