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Context-aware ubiquitous computing applications thrive in extremely dynamic and heterogeneous environments. When they are delivered to the user preconfigured and without the capability to be adapted, they may fail to satisfy the user's changing needs and may give the user the feeling that control is taken away from him. In this paper we present how context can be exploited in ubiquitous computing...
This publication describes two new classes of specialised information systems: UBIAS and E-UBIAS. Such systems belong to the group of cognitive reasoning systems and are designed for the semantic analysis of complex patterns having the form of biomedical images. These systems are predecessors of a new generation of intelligent systems for understanding medical image data and using this data as biometric...
The systematic evaluation of ontology alignments still faces a number of problems. One is the argued inadequacy of traditional quality measures adopted from the field of information retrieval. In previous work, Euzenat and others have proposed notions of semantic precision and recall that are supposed to better reflect the true quality of an alignment by considering its deductive closure rather than...
In this paper we illustrate the architecture of an agent that plays the role of an ??intelligent advisor??. The advisor is aimed at suggesting the best managing strategies for a model of a virtual town. A Decision Support System (DSS) embedded on a conversational agent constitutes the intelligent advisor architecture. Two interacting knowledge representation areas characterize the DSS. The first one...
Component's QoS constraints cannot be ignored when composing them to build reliable loosely-coupled, distributed systems. Therefore they should be explicitly taken into account in any formal model for component-based development. Such is the purpose of this paper: to extend a calculus of component composition to deal, in an effective way, with QoS constraints. Particular emphasis is put on how the...
In the past years, it has been investigated in multiple research projects how shared data spaces can be extended with concepts and technologies from the semantic web area, which led to the development of so-called semantic spaces. These semantic spaces enable clients to publish semantically annotated data at a shared repository and to react to changes of information that can be inferred from this...
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