: Metadata research has emerged as a new discipline in the last years, and is focused on the provision of semantic descriptions of a diverse kind to digital resources, web resource...
This paper formalizes the semantics of trust and studies the transitivity of trust. On the Web, people and software agents have to interact with "strangers". This makes ...
Recently, there has been a wide interest in using ontologies on the Web. As a basis for this, RDF Schema (RDFS) provides means to define vocabulary, structure and constraints for ...
Stefan Decker, Dieter Fensel, Frank van Harmelen, ...
Instant Messaging is in addition to Web and Email the most popular service on the Internet. With xOperator we demonstrate the implementation of a strategy which deeply integrates I...
Abstract. The Semantic Desktop is a means to support users in Personal Information Management (PIM). It provides an excellent test bed for Semantic Web technology: resources (e. g....