2063 search results - page 109 / 413 » Containment of Aggregate Queries |
142
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GIS
2002
ACM
15 years 4 months ago
2002
ACM
Geographical information systems are more and more based on a DBMS with spatial extensions, which is also the case for the system described in this paper. The design and implementa...
153
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KR
2010
Springer
15 years 9 months ago
2010
Springer
Ontologies can be used to provide an enriched vocabulary for the formulation of queries over instance data. We identify query emptiness and predicate emptiness as two central reas...
163
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COOPIS
2004
IEEE
15 years 8 months ago
2004
IEEE
Enhanced Multimedia Meta Objects (EMMOs) are a novel approach to multimedia content modeling, combining media, semantic relationships between those media, as well as functionality ...
167
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SIGMOD
2010
ACM
15 years 2 months ago
2010
ACM
Given a graph database D and a query graph g, an exact subgraph matching query asks for the set S of graphs in D that contain g as a subgraph. This type of queries find important...
133
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DMSN
2009
ACM
15 years 10 months ago
2009
ACM
Creating statistics from sporting events is now widespread with most efforts to automate this process using various sensor devices. The problem with many of these statistical app...