298 search results - page 50 / 60 » Query Rewriting in DL-Lite_^(HN)_horn |
104
click to vote
CORR
2011
Springer
14 years 6 months ago
2011
Springer
Contemporary use of the term ’intension’ derives from the traditional logical doctrine that an idea has both an extension and an intension. In this paper we introduce an intens...
168
click to vote
SIGMOD
2009
ACM
15 years 11 months ago
2009
ACM
We present a complete XPath cost-based optimization and execution framework and demonstrate its effectiveness and efficiency for a variety of queries and datasets. The framework i...
ESWS
2008
Springer
15 years 23 days ago
2008
Springer
Abstract. The Semantic Web is an effort by the W3C to enable integration and sharing of information across different applications and organizations using annotations by means of on...
106
click to vote
AIMSA
2010
Springer
15 years 16 days ago
2010
Springer
Abstract. Ontology based data access (OBDA) is concerned with providing access to typically very large data sources through a mediating conceptual layer that allows one to improve ...
172
click to vote
VLDB
2007
ACM
15 years 11 months ago
2007
ACM
The database community is on a constant quest for better integration of data management and knowledge management. Recently, with the increasing use of ontology in various applicat...