The Backward function is important for the whole analysis while we use an On-Line Analytical Processing (OLAP) system.

该文论述了用户使用联机分析处理（OLAP）系统时，回退功能对整个分析过程所具有的重要意义。

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It is proved that the model based on the On-Line Analytical Processing(OLAP) analysis and the Bayesian network is an effective tool to analyze the customer fraudulency and can get high accuracy.

实验表明，基于OLAP分析和贝叶斯网络的话费欺诈预测效果良好，是一种有效的客户欺诈分析工具。

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