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    • 6. 发明申请
    • Fraud score calculating program, method of calculating fraud score, and fraud score calculating system for credit cards
    • 欺诈分数计算程序,计算欺诈分数的方法,以及信用卡欺诈分数计算系统
    • US20040225473A1
    • 2004-11-11
    • US10747098
    • 2003-12-30
    • INTELLIGENT WAVE, INC.
    • Osamu AokiMikinori Seita
    • G06F015/00
    • G07F7/08G06Q20/40G06Q20/4016G06Q20/4037G06Q40/00
    • A fraud score calculating program primarily for use in determining the possibility of credit card fraud can calculate a score reflecting the reliability of a model created based on Bayesian theory. A model which is stored in a fraud detection model database 120 obtains new authorization data and continues learning as the number of data samples increases. Calculation of the score is performed by a calculation logic provided in a scoring subsystem 110. The sample number data for a case corresponding to the authorization data are obtained from the model, and the probability of the occurrence of fraudulent use is calculated. The reliability of the model is also calculated on the basis of, for example, the number of the registered samples, and a fraud score is calculated using both the calculated probability of the occurrence of fraud and the calculated reliability of the model.
    • 主要用于确定信用卡欺诈的可能性的欺诈分数计算程序可以计算反映基于贝叶斯理论创建的模型的可靠性的分数。 存储在欺诈检测模型数据库120中的模型获得新的授权数据,并随着数据样本的数量的增加而继续学习。 通过评分子系统110中提供的计算逻辑来执行分数的计算。从模型获得与授权数据相对应的情况的样本数量数据,并且计算发生欺诈性使用的概率。 还可以基于例如登记样本的数量来计算模型的可靠性,并且使用所计算的欺诈发生的概率和所计算的模型的可靠性两者来计算欺诈分数。