Titlebook: Web Technologies and Applications; 13th Asia-Pacific We Xiaoyong Du,Wenfei Fan,Mohamed A. Sharaf Conference proceedings 2011 Springer Berli

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Efficient Approximate Top-, Query Algorithm Using Cube Indexs is inherent and unavoidable due to the user’s subjective judgment, and the cost of processing exact top-k queries is highly expensive for datasets with huge volume, it is intriguing to answer approximate top-k query instead. In this paper, we first define a novel kind of approximate top-k query, c

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DVD: A Model for Event Diversified Versions Discoverynto events which are constructed online automatically and updated temporally. There are always diversified versions to describe an event and users usually are eager to know all the versions. With the huge quantity of documents, it is almost impossible for users to read all of them. In this paper, we

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