Sciweavers

2599 search results - page 180 / 520
» An Operational Semantics for Knowledge Bases
Sort
View
RR
2010
Springer
15 years 4 months ago
Query-Based Access Control for Ontologies
Role-based access control is a standard mechanism in information systems. Based on the role a user has, certain information is kept from the user even if requested. For ontologies ...
Martin Knechtel, Heiner Stuckenschmidt
GEOS
2007
Springer
16 years 16 days ago
Supporting Complex Thematic, Spatial and Temporal Queries over Semantic Web Data
Spatial and temporal data are critical components in many applications. This is especially true in analytical domains such as national security and criminal investigation. Often, t...
Matthew Perry, Amit P. Sheth, Farshad Hakimpour, P...
CCS
2005
ACM
15 years 12 months ago
PeerAccess: a logic for distributed authorization
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...
Marianne Winslett, Charles C. Zhang, Piero A. Bona...
ECAI
2008
Springer
15 years 8 months ago
Approximate structure preserving semantic matching
Abstract. Typical ontology matching applications, such as ontology integration, focus on the computation of correspondences holding between the nodes of two graph-like structures, ...
Fausto Giunchiglia, Mikalai Yatskevich, Fiona McNe...
STAIRS
2008
112views Education» more  STAIRS 2008»
15 years 7 months ago
Unsupervised Web-based Automatic Annotation
The success of the Semantic Web depends both on the definition of ontologies used to represent the knowledge as on the annotations performed of the web contents. As manual approach...
Miquel Millan, David Sánchez, Antonio Moren...