Answering Top-k Similar Region Queries

Advances in web technology have given rise to new information retrieval applications. In this paper, we present a model for geographical region search and call this class of query similar region query. Given a spatial map and a query region, a similar region search aims to

find the top-k most similar regions to the query region on the spatial map. We design a quadtree based algorithm to access the spatial map at different resolution levels. The proposed search technique utilizes a filter-and-refine manner to prune regions that are not likely to be part of the top-k results, and refine the remaining regions. Experimental study

based on a real world dataset verifies the effectiveness of the proposed

region similarity measure and the efficiency of the algorithm.

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In  DASFAA 2010

Publisher  Springer Verlag
All copyrights reserved by Springer 2007.


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