A case study on freshness based scoring for fresh information retrieval

Nobuyoshi Sato, Minoru Uehara, Yoshifumi Sakai

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

4 Citations (Scopus)

Abstract

For most businesses, fresh information retrieval is very important However, it is difficult for conventional search engines based on centralized architecture to retrieve really fresh information, because they take a long time to collect documents via Web robots. In contrast to a centralized architecture, a search engine based on a distributed architecture does not need to collect documents, because each site independently makes an index. As this result, distributed search engines can retrieve really fresh information. However, fast indexing is not enough to easily retrieve fresh information. The value of information is determined by both freshness and relevance. Traditional ranking methods consider either freshness or relevance; so, we proposed FTF-IDF (Fresh Term Frequency multiplied by Inverse Document Frequency) as a scoring method that considers both freshness and relevance. In this paper, we will describe a verification of FTF-IDF on an actual web diary.

Original languageEnglish
Title of host publicationProceedings - IEEE International Symposium on Communications and Information Technologies, ISCIT 2004
Pages210-215
Number of pages6
Publication statusPublished - 2004 Dec 1
EventIEEE International Symposium on Communications and Information Technologies: Smart Info-Media Systems, ISCIT 2004 - Sapporo, Japan
Duration: 2004 Oct 262004 Oct 29

Publication series

NameIEEE International Symposium on Communications and Information Technologies: ISCIT 2004
Volume1

Other

OtherIEEE International Symposium on Communications and Information Technologies: Smart Info-Media Systems, ISCIT 2004
CountryJapan
CitySapporo
Period04/10/2604/10/29

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Sato, N., Uehara, M., & Sakai, Y. (2004). A case study on freshness based scoring for fresh information retrieval. In Proceedings - IEEE International Symposium on Communications and Information Technologies, ISCIT 2004 (pp. 210-215). (IEEE International Symposium on Communications and Information Technologies: ISCIT 2004; Vol. 1).