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162
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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...
176
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MIS
2001
Springer
15 years 9 months ago
2001
Springer
A multimedia report is a multimedia presentation which integrates data returned by one or more queries to a multimedia database, thus extending the concept of report familiar in tr...
125
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APLAS
2000
ACM
15 years 9 months ago
2000
ACM
Previous studies on safety of program transformations with respect to performance considered two criteria: preserving performance within a constant factor and preserving complexit...
131
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HASE
1998
IEEE
15 years 9 months ago
1998
IEEE
A well-known security problem with MPOA is that cutthrough connections generally bypasses firewall routers if there are any. None of the previously proposed approaches solved the ...
141
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ICALP
1998
Springer
15 years 9 months ago
1998
Springer
In the seventies, several classification schemes for the rational languages were proposed, based on the alternate use of certain operators (union, complementation, product and star...