中文摘要：

针对CDMA2000EVDO移动网络中的盗用问题,结合CDMA网络无线宽带原始计费话单的生成机制,对AAA的原始计费话单内容进行了分析和解构;基于数据挖掘理论和技术提出了原始计费话单分析模型,从中发现话单与盗用行为的关联性,并通过编写分析脚本,实现了可疑话单的筛选。最后,利用广东电信现网数据进行分析,对系统模型进行了验证。测试结果显示,原始计费话单分析模型能够完成原始计费话单的分析工作,并从中找出异常的话单。

英文摘要：

Aiming at the theft problem of CDMA2000 EVDO mobile network, and combining with the generating mechanism of the call detail record in CDMA wireless broadband network in China, the content of AAA （Au- thentication, Authorization, Accounting） call detail record is analysed and deeonstructed, an original billing com- munication detail records analysis model based on data mining technology is put forward to search the connection between the call detail record and the theft behavior. The screening of suspicious records is realized finally by writing analysis scripts. Meanwhile,the validity of the system model is validated by analysing the real data from Guangdong Telecom. Test results show that the analysis model is able to complete the analysis of the original billing communication detail records and find out the abnormal communication detail records.