7576 search results - page 311 / 1516 » On Querying Ontologies and Databases |
292
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ICDE
2008
IEEE
16 years 8 months ago
2008
IEEE
We study the problem of auditing a batch of SQL queries: Given a forbidden view of a database that should have been kept confidential, a batch of queries that were posed over this ...
288
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PODS
2009
ACM
16 years 7 months ago
2009
ACM
We consider the problem of deciding query equivalence for a conjunctive language in which queries output complex objects composed from a mixture of nested, unordered collection ty...
188
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SIGMOD
2004
ACM
16 years 7 months ago
2004
ACM
We present several methods for mining knowledge from the query logs of the MSN search engine. Using the query logs, we build a time series for each query word or phrase (e.g., `Th...
198
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SIGMOD
2003
ACM
16 years 7 months ago
2003
ACM
Modern database systems provide not only powerful data models but also complex query languages supporting powerful features such as the ability to create new database objects and ...
202
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EDBT
2002
ACM
16 years 6 months ago
2002
ACM
With the emergence of applications that require content-based similarity retrieval, techniques to support such a retrieval paradigm over database systems have emerged as a critica...