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In traditional K-means, the target function only considered the intra-cluster similarities and did not take into account the differences among categories. In order to take into account both the firmness in the same cluster and the dispersion between different clusters, a new objective function based on ideal point is given, and the K-means algorithm based on quasi ideal point method is provided. A...
The cluster-based routing algorithm based on the method of genetic clustering in Wireless Sensor Network (WSN) is proposed in this paper. In the network of non-uniform distribution nodes, the algorithm can cluster the network and select the cluster heads after setting the nodes. When the geographic location change or failure of cluster heads, the algorithm can be used to re-cluster and re-selecting...
According to requirements of marine observation environment, a kind of real-time data collection architecture in marine monitoring system, based on wireless sensor network, is proposed in this paper. The architecture is a two-level in-situ monitoring technology: the high level taking GPS as an absolute in-situ and the lower level taking wireless sensor array as a relative in-situ. The buoyages and...
It is important to identify P2P flows accurately for effective network planning and design, security insuring, network management, network behavior understanding and so on. Firstly, an algorithm for identifying listening port of P2P host (LPIA for short) is proposed. Secondly, a heuristic algorithm of P2P flow identification (PFIA for short) is presented, which combines P2P host's listening port,...
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