Now people use the search engine--Google, Yahoo, Baidu etc. to lookup Web information mainly, but these search engines involve so wide range, with whose intelligence degree is pool. They are very difficult to mine data further. So, web text mining aims to resolve this problem. This paper discusses an Algorithm of how to follow the appointed web site or web page according to the user's request by using the technique of ASP(Active Serve Page), and research and realization how further obtains data of particular range in Internet by text extraction on web mining. The method has more accuracy, better applicability and less manual interference.The information obtained are the majority of the documents in the field. it can be used to create knowledge database, and it can also be treated as a small scaled vertical search system.
In this paper, a simple analysis method for space force telepresence teleoperation system is proposed. Because the long distance between the master controller and the slave side, there exists long time delay in communication channel, which cause the system instability and decreased operation ability. The goal of this paper is to analyze the system unconditional stability with the difference and differential equations based on telepresence system time delay dynamic equation. Simulation results show good performance of the proposed method in space force teleoperation system.
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