In order to raise the pertinence of customer marketing decision and reduce customer churn rate by big percentage, the article carries on a positive research on the customer churn data of a SP enterprise by using the COX model.

• 摘要利用生存分析对一家电信增值业务提供商的客户流失数据进行了实证研究，提出了一个预测客户流失概率的模型。