The main work and results in this paper include: 1. We give a short review on the customer churn analysis and related data mining methodology applications in customer churn.
论文的主要工作和成果包括：1。综述了客户流失分析以及数据挖掘的研究现状，论述了客户流失分析的相关问题。
There are some methods for data mining, and then Rough Sets methodology is one of important methods.
进行数据挖掘的方法有许多，而粗集方法便是其中的主要方法之一。
While data mining, as an advanced data analysis methodology, is an effective tool for the in-depth analysis of customer data.
数据挖掘作为一种先进的数据分析方法，是实现对客户数据进行深入分析的有效工具。
The very important thing to intrusion detection based on data mining are methodology for building and using dataset, i. e. training dataset and testing dataset.
基于数据挖掘的入侵检测系统面临的很重要的问题就是如何生成和使用数据集，即如何生成和使用训练数据集和测试数据集。
There are some methods for data mining, and Rough Sets methodology is one of important methods.
进行数据挖掘的方法很多，粗集方法便是其中的主要方法之一。
There are some methods for data mining, and Rough Sets methodology is one of important methods.
进行数据挖掘的方法很多，粗集方法便是其中的主要方法之一。
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