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To deal with users' diversified query requirements on uncertain data, an uncertain data query semantic for requirement extension named RU-Topk is introduced. In the high-load application environment, the top-k query algorithm's response time may be long. In order to satisfy performance requirements, with the consideration of the algorithm's features, the design and implementation of GPU-based RU-Topk...
Considering the complex uncertain database, top-kquery processing in uncertain databases is semantically and computationally different from classical top-kprocessing. Score is not the only factor we should concern. The interplay between score and membership uncertainty makes computation complex. Powerful computing capability of Graphic Processing Unit(GPU) is needed in the processing of this kind...
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