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K-means algorithm is one of the most famous unsupervised clustering algorithms. Many theoretical improvements for the performance of original algorithms have been put forward, while almost all of them are based on Single Instruction Single Data(SISD) architecture processors (CPUs), which partly ignored the inherent paralleled characteristic of the(More)
We have studied the AC-4 algorithm and then present value ordering heuristic for solving algorithm BT-MSV which is based on the AC-4 algorithm. This algorithm takes full advantage of supported information which is recorded in the data structure of the AC-4 algorithm during the process of arc consistency. The algorithm sorts the value of the variables'(More)
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