Optimization of geographic area to a web page for two-dimensional range query processing

Authors:
R. Lee;H. Shiina;H. Takakura;Y. J. Kwon;Y. Kambayashi
Affiliations:
Department of Social Informatics, Kyoto University, Kyoto, Japan;Department of Social Informatics, Kyoto University, Kyoto, Japan;Academic Center for Computing and Media Studies, Kyoto University, Kyoto, Japan;Department of Telecommunication and Information Engineering, Hankuk Aviation University, Dukyang, Kyounggi-Do, Korea;Department of Social Informatics, Kyoto University, Kyoto, Japan
Venue:
WISEW'03 Proceedings of the Fourth international conference on Web information systems engineering workshops
Year:
2003

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Abstract

We have been developing a geographic web search system to retrieve proper web pages for a user-specified geographic area. One of location specification methods possible in the system is a two-dimensional range query, which is specified by a rectangle region corresponding to a geographic area. In order to handle such a geographic query, we propose i) a geographic web index method which is possible to manage each web pages by optimized geographic scope and ii) geometric operations such as 'Contain' as a function to retrieve geographic web pages. However, recall and precision of search results by raw geometric search operations become very low, if we do not optimize a geographic area to a web page. By considering of geowords' characterics, we can improve the result by geometric operations in range query processing.