25 search results - page 4 / 5 » Extended Semantics and Optimization Algorithms for CP-Networ... |
DLOG
2011
13 years 2 days ago
2011
W3C currently extends the SPARQL query language with so-called entailment regimes, which define how queries are evaluated using logical entailment relations. We describe a sound a...
POPL
1994
ACM
14 years 19 days ago
1994
ACM
Abstract: The narrowing relation over terms constitutes the basis of the most important operational semantics of languages that integrate functional and logic programming paradigms...
SIGMOD
2006
ACM
14 years 8 months ago
2006
ACM
We study the problem of finding efficient equivalent viewbased rewritings of relational queries, focusing on query optimization using materialized views under the assumption that ...
ICDE
2003
IEEE
14 years 10 months ago
2003
IEEE
Intuitively, data management and data integration tools should be well-suited for exchanging information in a semantically meaningful way. Unfortunately, they suffer from two sign...
CSB
2005
IEEE
2005
IEEE
BioNavigation: Using Ontologies to Express Meaningful Navigational Queries Over Biological Resources
14 years 2 months ago
Exploiting the complex maze of publicly available Biological resources to implement scientific data collection pipelines poses a multitude of challenges to biologists in accurate...