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Location-based spatial queries

Published: 09 June 2003 Publication History

Abstract

In this paper we propose an approach that enables mobile clients to determine the validity of previous queries based on their current locations. In order to make this possible, the server returns in addition to the query result, a validity region around the client's location within which the result remains the same. We focus on two of the most common spatial query types, namely nearest neighbor and window queries, define the validity region in each case and propose the corresponding query processing algorithms. In addition, we provide analytical models for estimating the expected size of the validity region. Our techniques can significantly reduce the number of queries issued to the server, while introducing minimal computational and network overhead compared to traditional spatial queries.

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cover image ACM Conferences
SIGMOD '03: Proceedings of the 2003 ACM SIGMOD international conference on Management of data
June 2003
702 pages
ISBN:158113634X
DOI:10.1145/872757
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Published: 09 June 2003

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SIGMOD '03 Paper Acceptance Rate 53 of 342 submissions, 15%;
Overall Acceptance Rate 785 of 4,003 submissions, 20%

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