A query-aware document ranking method for geographic information retrieval

Bo Yu, Guoray Cai

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

15 Scopus citations

Abstract

Geographically oriented search must consider both the thematic and geographic dimensions of relevance when matching documents to queries. We propose a dynamic document ranking scheme to combine the thematic and geographic relevance measures on a per-query basis. Query specificity is introduced to determine the relative weights of different sources of ranking evidence for each query. A preliminary evaluation comparing with human judgment shows that our method to distinguish different types of geo-referenced queries based on query specificity is promising to address the issue of relevance combination in GIR document ranking. In addition, we explore the possibility of using Dempster-Shafer's theory to combine the two different sources of ranking evidence.

Original languageEnglish (US)
Title of host publicationProceedings of the 4th ACM Workshop on Geographical Information Retrieval, GIR '07, Co-located with the 16th ACM Conference on Information and Knowledge Management, CIKM 2007
Pages49-54
Number of pages6
DOIs
StatePublished - Dec 1 2007
Event4th ACM Workshop on Geographical Information Retrieval, GIR '07, Co-located with the 16th ACM Conference on Information and Knowledge Management, CIKM 2007 - Lisboa, Portugal
Duration: Nov 6 2007Nov 9 2007

Publication series

NameInternational Conference on Information and Knowledge Management, Proceedings

Other

Other4th ACM Workshop on Geographical Information Retrieval, GIR '07, Co-located with the 16th ACM Conference on Information and Knowledge Management, CIKM 2007
CountryPortugal
CityLisboa
Period11/6/0711/9/07

All Science Journal Classification (ASJC) codes

  • Decision Sciences(all)
  • Business, Management and Accounting(all)

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