6274 search results - page 164 / 1255 » From query complexity to computational complexity |
154
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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...
218
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ICDE
2004
IEEE
16 years 5 months ago
2004
IEEE
As information becomes available in increasing amounts to a wide spectrum of users, the need for a shift towards a more user-centered information access paradigm arises. We develo...
168
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PODS
2010
ACM
15 years 9 months ago
2010
ACM
Differential privacy is a robust privacy standard that has been successfully applied to a range of data analysis tasks. But despite much recent work, optimal strategies for answe...
141
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GEOS
2009
Springer
15 years 9 months ago
2009
Springer
Abstract. Often the information present in a spatial knowledge base is represented at a different level of granularity and abstraction than the query constraints. For querying onto...
140
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SEBD
2007
15 years 5 months ago
2007
We consider the problem of query containment over an object data model derived from F-logic. F-logic has generated considerable interest commercially, in the academia, and within ...