3225 search results - page 264 / 645 » Query Optimization by Stored Queries |
168
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OOPSLA
1997
Springer
15 years 10 months ago
1997
Springer
Object relationships in modern software systems are becoming increasingly numerous and complex. Programmers who try to find violations of such relationships need new tools that al...
296
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ICDE
2007
IEEE
16 years 7 months ago
2007
IEEE
Top-k processing in uncertain databases is semantically and computationally different from traditional top-k processing. The interplay between score and uncertainty makes traditio...
162
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ISAAC
2005
Springer
15 years 11 months ago
2005
Springer
In this paper we present space-query trade-offs for external memory data structures that answer shortest path queries on planar directed graphs. For any S = Ω(N1+ ) and S = O(N2...
171
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DLOG
2007
15 years 8 months ago
2007
We present cq-programs, which enhance nonmonotonic description logics (dl-) programs by conjunctive queries (CQ) and union of conjunctive queries (UCQ) over Description Logics kno...
290
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ICDE
2008
IEEE
16 years 7 months ago
2008
IEEE
The management of privacy and security in the context of data stream management systems (DSMS) remains largely an unaddressed problem to date. Unlike in traditional DBMSs where acc...