Abstract:The Skyline queries retrieve a set of data whose elements are incomparable in terms of multiple user-defined criteria. In addition, Top-k Skyline queries filter the best k Skyline points where k is the number of answers desired by the user. Several index-based algorithms have been proposed for the evaluation of Top-k Skyline queries. These algorithms make use of indexes defined on a single attribute and they require an index for each user-defined criterion. In traditional databases, the use of multidimensional… Show more
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