511 search results - page 101 / 103 » Inverting schema mappings |
ICLP
2005
Springer
13 years 11 months ago
2005
Springer
Abstract Description Logics (DLs) are a family of class (concept) based knowledge representation formalisms. They are characterised by the use of various constructors to build comp...
SAC
2004
ACM
13 years 11 months ago
2004
ACM
Interoperability is one of the main issues in creating a networked system of repositories The approaches range from simply forcing one metadata standard on all participating repos...
DRM
2003
Springer
13 years 11 months ago
2003
Springer
In this paper, we present our experiences concerning the enforcement of access rights extracted from ODRL-based digital contracts. We introduce the generalized Contract Schema (Co...
PODS
2010
ACM
13 years 10 months ago
2010
ACM
The notion of certain answers arises when one queries incompletely specified databases, e.g., in data integration and exchange scenarios, or databases with missing information. W...
SIGMOD
2010
ACM
13 years 10 months ago
2010
ACM
Many advanced data management operations (e.g., incremental maintenance, trust assessment, debugging schema mappings, keyword search over databases, or query answering in probabil...