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Loosely Coupling Ontological Reasoning with an Efficient Middleware for Context-awareness

Loosely Coupling Ontological Reasoning with an Efficient Middleware for Context-awareness,10.1109/MOBIQUITOUS.2005.34,Alessandra Agostini,Claudio Bett

Loosely Coupling Ontological Reasoning with an Efficient Middleware for Context-awareness   (Citations: 23)
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Context-awareness in mobile and ubiquitous computing requires the acquisition, representation and processing of information which goes beyond the device features, network status, and user location, to include semantically rich data, like user interests and user current activity. On the other hand, when services have to be provided on-the-fly to many mobile users, the efficiency of reasoning with these data be- comes a relevant issue. Experimental evidence has lead us to consider currently impractical a tight integration of on- tological reasoning with rule based reasoning at the time of request. This paper illustrates a hybrid approach where ontological reasoning is loosely coupled with the efficient rule-based reasoning of a middleware architecture for ser- vice adaptation. While rule-based reasoning is performed at the time of service request to evaluate adaptation policies and reconcile possibly conflicting context information, on- tological reasoning is mostly performed asynchronously by local context providers to derive non-shallow context infor- mation. A limited form of ontological reasoning is activated at the time of request only when essential for service provi- sioning.
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