Geographic information retrieval to suit immediate surroundings

Authors:
Hiroyuki Toda;Norihito Yasuda;Yumiko Matsuura;Ryoji Kataoka
Affiliations:
NTT Corporation, Hikarinooka Yokosuka-shi Kanagawa, Japan;NTT Corporation, Hikarinooka Yokosuka-shi Kanagawa, Japan;NTT Corporation, Hikarinooka Yokosuka-shi Kanagawa, Japan;NTT Corporation, Hikarinooka Yokosuka-shi Kanagawa, Japan
Venue:
Proceedings of the 17th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
Year:
2009

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Abstract

This paper proposes a highly effective geographic information retrieval method. It assesses the extent implied by place names in documents and then emphasizes place names that are highly specific in terms of identifying locations. Furthermore, the method also assesses the proximity between place names and keywords in each document and adjusts the document score based on the proximity between place name associated with user's geographic intention and keywords associated with user's query. Evaluation results show that the two methods proposed herein offer improved performance according to some TREC-style evaluation metrics.