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A center choice method based on sub-graph division is presented. After constructing the similarity matrix, the disconnected graphs can be established taking the text node as the vertex of the graph and then it will be analyzed. The number of the clustering center and the clustering center can be confirmed automatically on the error allowable range by this method. The noise data can be eliminated effectively...
Previous wrappers of information extraction are mostly set for the web page which has one information block, so they are unable to deal with the multiple information blocks web page. Because of the adapt ability of the above mentioned shortcomings, this paper proposes a multiple wrappers information extraction method based on tree model. It will generate a wrapper for every block using the Tree-Align...
Applying automatic summarization to search engine can make it easier for users to find out the content of the Web page. In this paper, the results of search engine are analyzed. On the basis of query keywords expansion, we propose a new summary approach which calculates the sentence weight utilizing the information of the distance between words. The results of experiment show that this method can...
On the base of research on congestion control, a flow control mechanism in video-on-demand system is proposed by introducing client buffer analysis. Congestion control and client buffer control were combined to adjust the sending rate adaptively. In this mechanism, all complex operations of traffic control were carried out at the clients, reducing the burden of the video server, allocating the network...
This paper designs a video transmission system based on binding multiple NICs, considering the situation and the problems of streaming media transmission. With the binding multiple NICs, RTP load optimizing strategy and the special distribution strategy of RTP packet data, the problem of congestion due to the network bandwidth deficiency under large concurrency situation can be effectively solved...
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