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With the emergence and rapid development of the application requirements of data publishing and data mining, how to protect the privacy data and prevent sensitive information leakage has become a great challenge. As a new privacy protection framework, differential privacy can provide privacy protection to the data. But the uniform grid method based on differential privacy has not considered the density...
For the high time overhead problems of Apriori algorithm while solving for the long length frequent patterns, using the MapReduce distributed programming ideas, the paper breaks the original idea of Aproiri which discovers the frequent item sets through gradually increasing the element numbers in the frequent item sets. It proposes a new non-iteration parallel algorithm about frequent pattern discovery,...
Web services composing technique presents the wonderful outlook of flexibly and agilely constructing the enterprise applications for us. In this paper, we analyze the Web services composing model and propose a new method of computing the service's QoS value solving the problem that the QoS properties have different trend. At the same time, we try to use the dijkstra algorithm to implement the optimal...
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