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Service composition schemes create high-level application services by combining several basic services. Service composition schemes for dynamic, open systems, such as those found in pervasive environments, must be cognizant of the possibility of failures and attacks. In open systems, it is seldom feasible to guarantee the reliability of each node prior to access; however, there may be several possible...
The increasing availability of cheap yet powerful RFID infrastructure is enabling many organizations to harness the benefits of this technology. However, the growing scale of reader devices and tags of all types by different vendors is also leading to increasing challenges in managing the information flowing from them. The RFID based management systems presently being used by organizations in supply...
This paper examines the feasibility of using ontologies to model generic sensor networks, based on the capabilities of the current generation of ontology tools. The creation of such an ontology, the current tool's capacity to adequately maintain it, and its potential functionality, as part of a larger semantic system are addressed here. These topics were addressed by constructing a generic sensor...
Urban Computing is an extension of Ubiquitous Computing. It shares common requirements with its predecessor, like context awareness, user centricity, composability and dynamicity. However, a challenging issue of urban computing is to provide available services to diverse, spontaneous social groups. A major requirement for this challenge is spontaneity, which is about supporting social groups by coordinating...
The proximity service using Bluetooth and/or P2P WIFI enabled mobile devices for people's social interactions with other users who come into their close proximity is becoming an important means for people to conveniently and efficiently expand their social networks. Proximity mobile social networks (PMSNs) are usually built in ad hoc mode to allow information sharing and interaction among users in...
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