Project Aura: Toward Distraction-Free Pervasive Computing
IEEE Pervasive Computing
Semantic Matching of Web Services Capabilities
ISWC '02 Proceedings of the First International Semantic Web Conference on The Semantic Web
GaiaOS: An Infrastructure for Active Spaces
GaiaOS: An Infrastructure for Active Spaces
Semantic Web in the Context Broker Architecture
PERCOM '04 Proceedings of the Second IEEE International Conference on Pervasive Computing and Communications (PerCom'04)
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The paper describes an agent-based web service coordination framework in ubiquitous computing. It is called context-mediated web service coordination. In the framework, all service processes in ubiquitous computing environments are wrapped in web services that have standard communication protocols. The framework coordinates sensor devices wrapped in web services, web services on the Internet, and web services that manage user profile, etc. In addition, these web services are wrapped in specific types of agents. Giving a standard agent communication protocols to the heterogeneous web service processes, the framework introduces a new agent-based service coordination layer in ubiquitous computing. Coordinating these agents based on the user's intention and their physical contexts, we can seamlessly coordinate the heterogeneous service components over the digital and real world in a human-centered manner. We also show a prototype application of the framework, context-aware information retrieval services in a museum.