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Query processing in mobile database systems is a special challenge because we have to consider the limited resources of mobile systems as well as the changing location of mobile users. In this paper, we concentrate on the optimisation of queries including location information. We present a cost model for query optimisation incorporating mobility specific(More)
Collection and organization of data in Clinical Trials requires a sophisticated information management system. An ideal System should be easy accessible over web-technology and should provide high security of data. When deciding for a solution meanwhile even mid-and big-sized companies also evaluate Open-Source Platforms against pure Commercial Solutions as(More)
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