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Handling high-level queries in location-based services for user groups

Partsinevelos Panagiotis, Nectaria Tryfona

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Year 2006
Type of Item Peer-Reviewed Journal Publication
Bibliographic Citation Partsinevelos P. & N. Tryfona, Handling High-level Queries in Location-based Services for User Groups, in GeoInformatica Journal, Jun. 2006, Volume 10, Issue 2, pp 213-234, DOI:10.1007/s10707-006-7580-7
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In this paper we deal with the high level management of data involved in Location-Based Services in order to accommodate corresponding queries. A series of techniques are employed on major components of an LBS, namely mobile users, application environment and selected services. First, a grouping technique generalizes the spatio-temporal data describing the mobile users' movement. The environment is represented under a combined spatial and content hierarchy according to the application at hand. Finally, in the service component, relational operators are formed to support relative spatio-temporal queries, while lifeline data types are constructed to extract and compare behavioral trend patterns among the formed user groups. We show how all proposed techniques communicate under a common database schema. Answers to characteristic queries demonstrate the applicability of this work.