Fresh information retrieval using cooperative meta search engines

Nobuyoshi Sato, Minoru Uehara, Yoshifumi Sakai, Hideki Mori

Research output: Chapter in Book/Report/Conference proceedingConference contribution


In web page retrievals, search engines are usually used. However, conventional search engines have a problem in that their update intervals are very longb ecause they are based on centralized architecture, which gathers documents using robots. So we proposed the Cooperative Search Engine (CSE) in order to reduce the update interval. CSE is a distributed search engine, which integrates small local search engines into a large global search engine by using local meta search engines. A local meta search engine hides a local search engine in each web site. Although CSE can reduce the update interval, the retrieval performance is not enough. So, we proposed several speed up techniques. In this paper, we describe the structure and behavior of CSE and its efficiency.

Original languageEnglish
Title of host publicationInformation Networking
Subtitle of host publicationWireless Communications Technologies and Network Applications - International Conference, ICOIN 2002, Revised Papers
EditorsIlyoung Chong
PublisherSpringer Verlag
Number of pages15
ISBN (Electronic)3540442553, 9783540442554
Publication statusPublished - 2002 Jan 1
Externally publishedYes
EventInternational Conference on Information Networking, ICOIN 2002 - Cheju Island, Korea, Republic of
Duration: 2002 Jan 302002 Feb 1

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


OtherInternational Conference on Information Networking, ICOIN 2002
Country/TerritoryKorea, Republic of
CityCheju Island

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)


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