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Context Aware Systems (CAS) support mobility of users and make context reasoning efficiently to provide relevant and real-time information. CAS should be particularly adaptive and aware by managing and responding properly to occurring events. Due mainly to the presence of numerous sensors and access to several communication networks, Context-awareness has been successfully included in the mobile device...
In the last years a new computing paradigm called Internet of Things (IoT) has been gaining more attention. This paradigm has become popular by embedding mobile network and processing capability into a wide range of physical computing devices used in everyday life of many people. An important part that composes the IoT is the middleware, which is a system that abstracts the management of physical...
Based on the existing research results about Ambient Intelligence (AmI), this paper proposes a logical system architecture for AmI, and then analyzes the function framework for context-aware middleware. We use ontology to model context-aware information in pervasive computing environment in order not only to share and structurally represent context information but also to reason higher level contexts...
The explosive growth of location detection devices, wireless communications, and mobile databases has resulted in the realization of location based services. Unfortunately, current location based services are rigid as they are isolated from various concepts of contextual information which include not only user's location but also user's preference, user's plan, network connectivity, etc. In this paper...
Emerging technologies like mobile and wireless communication are offering promising opportunities to enable mobile healthcare delivery to citizens. But, enhancing the quality of service of such systems demands systematic improvement of existing service infrastructure. In this paper, we describe a context information refinement architecture proposed to address the shortcomings of existing works in...
Incorporating service composition and pervasive computing into managing user's complex everyday activities envisions the paradigm of pervasive service composition for everyday life. Context-aware pervasive service composition (CAPSC) enables a pervasive system to provide a user with service compositions that are relevant to the user's context. Moreover, CAPSC enables composition applications that...
Classical tracking methods are often insufficient when dealing with complex scenarios. In order to solve tracking errors, innovative techniques based on the use of information about the context of the scene have been proposed. Context information ranges from precise measures computed on the pixels of the object neighborhood to high level representations of the entities and the activities of the scene...
Today's society increasingly depends on software systems deployed in large companies, banks, airports, and so on. These systems must be available 24/7 and continuously adapt to varying environmental conditions and requirements. Such dynamically adaptive systems exhibit degrees of variability that depend on user needs and runtime fluctuations in their contexts. The paper presents an approach for specifying...
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