2705 search results - page 122 / 541 » Formal Ontology for Subject |
WWW
2008
ACM
14 years 8 months ago
2008
ACM
Many emerging semantic web applications include ontologies from one set of authors and instance data from another (often much larger) set of authors. Often ontologies are reused a...
WWW
2004
ACM
14 years 8 months ago
2004
ACM
This paper presents a search architecture that combines classical search techniques with spread activation techniques applied to a semantic model of a given domain. Given an ontol...
KDD
2006
ACM
14 years 8 months ago
2006
ACM
Ontologies represent data relationships as hierarchies of possibly overlapping classes. Ontologies are closely related to clustering hierarchies, and in this article we explore th...
SACMAT
2009
ACM
14 years 2 months ago
2009
ACM
XACML does not natively support RBAC and even the specialized XACML profiles are not able to support many relevant constraints such as static and dynamic separation of duty. Exte...
WIDM
2005
ACM
14 years 1 months ago
2005
ACM
This paper describes a framework for ontology-based flexible discovery of Semantic Web services. The proposed approach relies on user-supplied, context-specific mappings from an...