74 search results - page 14 / 15 » Ontology-Mediated Query Answering with Data-Tractable Descri... |
139
click to vote
CCS
2005
ACM
15 years 6 months ago
2005
ACM
This paper introduces the PeerAccess framework for reasoning about authorization in open distributed systems, and shows how a parameterization of the framework can be used to reas...
109
click to vote
CORR
2006
Springer
15 years 1 months ago
2006
Springer
Through the Internet and the World-Wide Web, a vast number of information sources has become available, which offer information on various subjects by different providers, often i...
126
click to vote
ICIP
1998
IEEE
16 years 2 months ago
1998
IEEE
We describe a new invariant-based data model for image databases under our approach for shape-based retrieval. The data model relies on contours description of the image shape, an...
136
click to vote
ICDT
2012
ACM
13 years 3 months ago
2012
ACM
A universal model of a database D and a set Σ of integrity constraints is a database that extends D, satisfies Σ, and is most general in the sense that it contains sound and co...
141
click to vote
AI
2010
Springer
15 years 1 months ago
2010
Springer
We develop a formal framework for comparing different versions of ontologies, and apply it to ontologies formulated in terms of DL-Lite, a family of `lightweight' description...