121 search results - page 18 / 25 » Semantic optimization techniques for preference queries |
JOT
2010
13 years 5 months ago
2010
Abstract The integration of database and programming languages is difficult due to the different data models and type systems prevalent in each field. We present a solution wher...
DKE
2010
13 years 6 months ago
2010
We describe the Consistency Extractor System (ConsEx) that computes consistent answers to Datalog queries with negation posed to relational databases that may be inconsistent with...
ICDE
2007
IEEE
14 years 8 months ago
2007
IEEE
Probabilistic databases have received considerable attention recently due to the need for storing uncertain data produced by many real world applications. The widespread use of pr...
HPDC
2008
IEEE
14 years 1 months ago
2008
IEEE
If the model of free-form queries, which has proved successful for HTML based search on the Web, is made available for Grid services, it will serve as a powerful tool for scientis...
WISE
2005
Springer
14 years 9 days ago
2005
Springer
Abstract. Approximation has been identified as a potential way of reducing the complexity of logical reasoning. Here we explore approximation for speeding up instance retrieval in...