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139
Voted
SSDBM
2002
IEEE
15 years 7 months ago
2002
IEEE
This paper presents an approach to answering queries over an ontology modelled using a description logic. The ontology acts as a global schema, providing a declarative description...
142
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CIDR
2009
15 years 3 months ago
2009
Workloads that comb through vast amounts of data are gaining importance in the sciences. These workloads consist of "needle in a haystack" queries that are long running ...
118
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ADBIS
1999
Springer
15 years 6 months ago
1999
Springer
Abstract. Overlapping Linear Quadtrees is a structure suitable for storing consecutive raster images according to transaction time (a database of evolving images). This structure s...
213
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Publication
Location-aware environments are characterized by a large number of objects and a large number of continuous queries. Both the objects and continuous queries may change their locati...
126
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SOFSEM
2004
Springer
15 years 7 months ago
2004
Springer
Abstract. Research on processing XML documents gained much activity in recent times. XML query languages are mostly based on XPath expressions, which are used to select parts of XM...