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2006
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Distance join queries on spatial networks

11 years 15 days ago
Distance join queries on spatial networks
The result of a distance join operation on two sets of objects R, S on a spatial network G is a set P of object pairs <p, q>, p R, q S such that the distance of an object pair <p, q> is the shortest distance from p to q in G. Several variations to the distance join operation such as UnOrdered, Incremental, Top-k, Semi-Join impose additional constraints on the distance between the object pairs in P, the ordering of object pairs in P, and on the cardinality of P. A distance join algorithm on spatial networks is proposed that works in conjunction with the SILC framework, which is a new approach to query processing on spatial networks. Experimental results demonstrate up to an order of magnitude speed up when compared with a prominent existing technique. Categories and Subject Descriptors H.2.8 [Database Management]: Database Applications-Spatial Databases and GIS; E.1 [Data Structures]: Graphs and Networks; H.2.4 [Database Management]: Systems-Query Processing General Terms...
Jagan Sankaranarayanan, Houman Alborzi, Hanan Same
Added 11 Nov 2009
Updated 11 Nov 2009
Type Conference
Year 2006
Where GIS
Authors Jagan Sankaranarayanan, Houman Alborzi, Hanan Samet
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