188 search results - page 1 / 38 » Query evaluation with soft-key constraints |
ICDE
1991
IEEE
13 years 8 months ago
1991
IEEE
— Constraints play an important role in the efficient query evaluation in deductive databases. In this paper, constraint-based query evaluation in deductive databases is investi...
RIVF
2003
13 years 6 months ago
2003
Abstract— This paper presents our work on supporting flexible query evaluation over large distributed, heterogeneous, and autonomous sources. Flexibility means that the query ev...
PODS
2008
ACM
14 years 4 months ago
2008
ACM
SEMWEB
2010
Springer
13 years 2 months ago
2010
Springer
This paper presents our work on supporting evaluation of integrity constraint issues in semantic web instance data. We propose an alternative semantics for the ontology language, i...
CDB
2004
Springer
13 years 8 months ago
2004
Springer
Abstract. Constraint databases that can be described by boolean combinations of polynomial inequalities over the reals have received ample research attention. In particular, the ex...