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Most researchers focus on the step of data mining, or data cleaning and integration, or data selection. However, there is a gap from the data mining to its real world application. In this paper, a step between data mining and application called the second data mining or knowledge presentation and management is proposed. The second data mining is the key whether the data mining result benefits the...
The email has profoundly affected our ways of life. In the year 2001, many Web sites begin operating the charge emails in china. Recently the foreign Internet company serves free email with large storage capability, which threats the existence of charge email. The churn of email users is serious. This paper studied the churn of the customer using the way of data mining based on the background introduced...
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