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According to the characteristics of edge betweenness in the complex network, if the betweenness of an edge is relative lower, a pair of nodes connected by that edge should be in the same community. An algorithm for detecting community structure is proposed based on this observation. After grouping nodes according to edge betweenness, some nodes not assigned yet to any community in the network are...
Many existing clustering algorithms use a single prototype to represent a cluster. However sometimes it is very difficult to find a suitable prototype for representing a cluster with an arbitrary shape. One possible solution is to employ multi-prototype instead. In this paper, we propose a minimum spanning tree (MST) based multi-prototype clustering algorithm. It is a split and merge scheme. In the...
Vector Quantization is an important tool of speaker identification system. In this paper, we introduce a new speaker identification system based on improved VQ algorithm, which takes the code vectors in traditional algorithm and those standard deviation as a new codebook to represent the particular speaker model in training phase.Based on the standard deviation.we redefine a weigthed distortion which...
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