Federation and sharing in the context marketplace

Authors:
Carsten Pils;Ioanna Roussaki;Tom Pfeifer;Nicolas Liampotis;Nikos Kalatzis
Affiliations:
Telecommunications Software and Systems Group, Waterford Institute of Technology, Waterford, Ireland;School of Electrical and Computer Engineering, National Technical University of Athens, Athens, Greece;Telecommunications Software and Systems Group, Waterford Institute of Technology, Waterford, Ireland;School of Electrical and Computer Engineering, National Technical University of Athens, Athens, Greece;School of Electrical and Computer Engineering, National Technical University of Athens, Athens, Greece
Venue:
LoCA'07 Proceedings of the 3rd international conference on Location-and context-awareness
Year:
2007

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Abstract

The emerging pervasive computing services will eventually lead to the establishment of a context marketplace, where context consumers will be able to obtain the information they require by a plethora of context providers. In this marketplace, several aspects need to be addressed, such as: support for flexible federation among context stakeholders enabling them to share data when required; efficient query handling based on navigational, spatial or semantic criteria; performance optimization, especially when management of mobile physical objects is required; and enforcement of privacy and security protection techniques concerning the sensitive context information maintained or traded. This paper presents mechanisms that address the aforementioned requirements. These mechanisms establish a robust spatially-enhanced distributed context management framework and have already been designed and carefully implemented.