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Hierarchical constraint satisfaction in spatial databases

Authors Papadias, Dimitris
Kalnis, Panos
Mamoulis, Nikos
Issue Date 1999
Source PROC NATL CONF ARTIF INTELL , pp. 142-147. 1999
Summary Several content-based queries in spatial databases and geographic information systems (GISs) can be modelled and processed as constraint satisfaction problems (CSPs). Regular CSP algorithms, however, work for main memory retrieval without utilizing indices to prune the search space. This paper shows how systematic and local search techniques can take advantage of the hierarchical decomposition of space, preserved by spatial data structures, to efficiently guide search. We study the conditions under which hierarchical constraint satisfaction outperforms traditional methods with extensive experimentation.
ISBN 0-262-51106-1
Language English
Format Conference paper
Access View full-text via Web of Science
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