Merchant fraudulent transaction detection method based on graph

The invention provides a graph-based merchant fraudulent transaction detection method. The method comprises the steps of obtaining transaction data and merchant fraudulent transaction label data; constructing a merchant common card relation network according to the transaction data and the merchant fraud transaction label data; according to the method, a commercial tenant common-card relation network is mined by adopting a graph algorithm, a commercial tenant fraudulent transaction gang and/or a commercial tenant fraudulent transaction list are output, the commercial tenant fraudulent transaction gang list or the commercial tenant fraudulent transaction list can be output by constructing the commercial tenant common-card relation network, and real-time detection can be carried out without depending on prior experience. 本发明提供一种基于图的商户欺诈交易侦测方法，通过获取交易数据和商户欺诈交易标签数据；根据交易数据和商户欺诈交易标签数据构建商户共卡关系网络；采用图算法对商户共卡关系网络进行挖掘，输出商户欺诈交易团伙和/或商户欺诈交易名单，通过构建一个商户共卡关系网络，可输出商户欺诈交易团伙名单或商户欺诈交易名单，并且，不依赖先验经验，可以进行实时侦测。