12635 search results - page 2353 / 2527 » Which semantic web |
238
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POPL
2006
ACM
16 years 4 months ago
2006
ACM
We define a new fixpoint modal logic, the visibly pushdown ?-calculus (VP-?), as an extension of the modal ?-calculus. The models of this logic are execution trees of structured p...
252
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POPL
2004
ACM
16 years 4 months ago
2004
ACM
We present a polynomial time randomized algorithm for global value numbering. Our algorithm is complete when conditionals are treated as non-deterministic and all operators are tr...
231
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SIGMOD
2009
ACM
16 years 4 months ago
2009
ACM
Conditional functional dependencies (CFDs) have recently been proposed as extensions of classical functional dependencies that apply to a certain subset of the relation, as specif...
201
Voted
SIGMOD
2007
ACM
16 years 4 months ago
2007
ACM
Suppose a long-running analytical query is executing on a database server and has been allocated a large amount of physical memory. A high-priority task comes in and we need to ru...
202
Voted
PODS
2001
ACM
16 years 4 months ago
2001
ACM
The dimensionality curse has profound e ects on the effectiveness of high-dimensional similarity indexing from the performance perspective. One of the well known techniques for im...