TY - GEN
T1 - A query-aware document ranking method for geographic information retrieval
AU - Yu, Bo
AU - Cai, Guoray
PY - 2007
Y1 - 2007
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=77954320887&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77954320887&partnerID=8YFLogxK
U2 - 10.1145/1316948.1316962
DO - 10.1145/1316948.1316962
M3 - Conference contribution
AN - SCOPUS:77954320887
SN - 9781595938282
T3 - International Conference on Information and Knowledge Management, Proceedings
SP - 49
EP - 54
BT - Proceedings 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
T2 - 4th ACM Workshop on Geographical Information Retrieval, GIR '07, Co-located with the 16th ACM Conference on Information and Knowledge Management, CIKM 2007
Y2 - 6 November 2007 through 9 November 2007
ER -