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2008
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Snapshot location-based query processing on moving objects in road networks

10 years 5 months ago
Snapshot location-based query processing on moving objects in road networks
Location-based services are increasingly popular and it is a key challenge to efficiently support query processing. We present a novel design to process large numbers of location-based snapshot queries on MOVing objects in road Networks (MOVNet, for short). MOVNet’s dual-index design utilizes an on-disk R-tree to store the network connectivities and an in-memory grid structure to maintain moving object position updates. A method to speedily compute the overlapping grid cells in the network relates these two indices. Based on the above features we propose algorithms to support mobile network distance range queries. We demonstrate via experimental results that MOVNet yields excellent performance while scaling to a very large number of moving objects. Categories and Subject Descriptors H.2.8 [Database Management]: Database Application—spatial databases and GIS Keywords Location-based Services, Spatial Data Management
Haojun Wang, Roger Zimmermann
Added 09 Nov 2010
Updated 09 Nov 2010
Type Conference
Year 2008
Where GIS
Authors Haojun Wang, Roger Zimmermann
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