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Authors: Xing Gao 1 ; Ali R. Hurson 1 and Krishna Kavi 2

Affiliations: 1 Pennsylvania State University, United States ; 2 University of North Texas, United States

Keyword(s): Location dependent query, validity region, proxy caching, nearest neighbour.

Related Ontology Subjects/Areas/Topics: Business Analytics ; Communication and Software Technologies and Architectures ; Data Engineering ; Data Warehouses and Data Mining ; e-Business ; Enterprise Information Systems

Abstract: Users’ queries for data or services in a mobile computing environment are highly relevant to their current locations. A nearest neighbor (NN) query finds the data object closest to the user’s location; and hence, NN query issued at different locations may lead to different results. The nearest neighbor validity region (NNVR) is the area where an NN query result remains valid. A cached NN result can be used to answer semantically equivalent NN queries issued in the same NNVR. Our analysis discovers that NNVRs carry useful information about neighboring objects’ locations. This paper proposes an algorithm data mining the hidden information in cached NNVRs to increase the proxy caching performance. The experimental results and analysis have demonstrated the effectiveness of the proposed algorithm in reducing query response time and workload on the database server.

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Paper citation in several formats:
Gao, X.; R. Hurson, A. and Kavi, K. (2007). ESTIMATE VALIDITY REGIONS FOR NEAREST NEIGHBOR QUERIES. In Proceedings of the Second International Conference on Software and Data Technologies - Volume 2: ICSOFT; ISBN 978-989-8111-07-4; ISSN 2184-2833, SciTePress, pages 129-136. DOI: 10.5220/0001323801290136

@conference{icsoft07,
author={Xing Gao. and Ali {R. Hurson}. and Krishna Kavi.},
title={ESTIMATE VALIDITY REGIONS FOR NEAREST NEIGHBOR QUERIES},
booktitle={Proceedings of the Second International Conference on Software and Data Technologies - Volume 2: ICSOFT},
year={2007},
pages={129-136},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001323801290136},
isbn={978-989-8111-07-4},
issn={2184-2833},
}

TY - CONF

JO - Proceedings of the Second International Conference on Software and Data Technologies - Volume 2: ICSOFT
TI - ESTIMATE VALIDITY REGIONS FOR NEAREST NEIGHBOR QUERIES
SN - 978-989-8111-07-4
IS - 2184-2833
AU - Gao, X.
AU - R. Hurson, A.
AU - Kavi, K.
PY - 2007
SP - 129
EP - 136
DO - 10.5220/0001323801290136
PB - SciTePress

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