In view of the fact that many decision tree classification algorithms are unable to deal with continuous attributes and missing values, this paper do some studies on decision tree classification algorithm based on rough set theory. The purpose of study is to build decision tree with higher accuracy rate and to enable decision tree classification
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At present, computer network security is confronting with sever challenge. Kinds of network attacks are threatening the security of users’data and information, such as Trojan, virus, warm and so on. Especially, Trojan technique is updating day by day. Trojan has caused great damage. So it is necessary to research into Trojan detection technique.First of all,
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With the completion of the restructuring and 3G operator licenses issued, Telecommunications market is becoming increasingly fierce competition, Three operators from the traditional single mobile or fixed business operations into a full-service operations, The broadband business as a key business as full service carriers are an important competitive positions. However, with the increasingly competitive broadband
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At present, computer network security is confronting with sever challenge. Kinds of network attacks are threatening the security of users’data and information, such as Trojan, virus, warm and so on. Especially, Trojan technique is updating day by day. Trojan has caused great damage. So it is necessary to research into Trojan detection technique.First of all,
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With the rapid development of Internet, IPv6 gradually spreads and is widely used because of its advantages. Now IPv4 is still the main Internet protocol. But with the rapid consumption of IP address and its own problems of IPv4, it is the main trend that IPv4 will be replaced by IPv6.The two protocols will coexist
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At present, computer network security is confronting with sever challenge. Kinds of network attacks are threatening the security of users’data and information, such as Trojan, virus, warm and so on. Especially, Trojan technique is updating day by day. Trojan has caused great damage. So it is necessary to research into Trojan detection technique.First of all,
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This thesis is a simple trial on depicting the reliance of machine learning algorithms on the distribution features of data set. It takes three research results as examples. The first example is about the decision tree algorithm. It is discovered that under the circumstances of the “same side splitting”, some purity functions used will become
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The life of the bearings is always unpredictable, therefore, it is very essential to examine the faultier diagnosis and monitor the device to keep it safely running. The process of faultier diagnosis includes acquisition of signal, feature extraction, failure mode identification etc, Faultier diagnosis is mainly based on Mechanical Signal Processing, Sensor Technology etc. In
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Along with the computer technology evolution, especially the Internet isdeveloping on its high way, more and more information become shares, a great dealof Web databases which have contained huge valuable information on various fieldshave already became the main information resource for people to go with all overthe world. But the space complexity of these data
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The capacity and field of meteorological data are growing and expanding rapidly as time goes by, forming Data Mountains and Data Mazes. Workers who work on the field of meteorology have faced the problem that how to effectively use meteorological data. The traditional methods in computer sciences have great difficulty in dealing with data on
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