Semantic web in a pervasive context-aware architecture (original) (raw)

2003

Abstract: This document describes a new approach that explores the use of Semantic Web languages in building an architecture for supporting context-aware systems. This new architecture called Context Broker Architecture (CoBrA) differs from other architectures in using the Web Ontology Language OWL for modeling ontologies of context and for supporting context reasoning.

Semantic Web in the context broker architecture

2004

Abstract: This document describes a new architecture that exploits Semantic Web technologies for supporting pervasive context-aware systems. This architecture called Context Broker Architecture (CoBrA) differs from other architectures in using the Web Ontology Language OWL for modeling ontologies of context and for supporting context reasoning.

The Role of the Semantic Web in Pervasive Context-Aware Systems

2003

Abstract. This paper describes an ontology expressed in OWL for supporting agent based context-aware systems in a pervasive computing environment. Defining an explicit representation of the ontology can help agents to reason about contexts and share context knowledge in a dynamic environment.

An ontology-based conceptual model for composing context-aware applications

Ubiquitous computing (UbiComp) applications operate within an extremely dynamic and heterogeneous environment. Thus context definition, representation, management and use become important factors that affect their operation. UbiComp applications have to dynamically adapt to changes in their environment as a result of users' or other actors' activities. To ease the development of such applications it is necessary to decouple application composition from context acquisition and representation, and at the same time provide universal models and mechanisms to manage context. This paper presents experiences with using an ontology to represent context of operation together with decision making for UbiComp applications that result from the composition of functionally independent components. These components were embedded in everyday objects, hence (a) their services were affected by their physical properties, (b) their context of operation was defined by the existence / availability...

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