Abstract: A method includes receiving, by a processor of a transaction processing entity, a transaction attempt. The method includes receiving a risk score from a risk strategy decision model, the risk score being determined from a machine learning model. The method includes in response to receiving the risk score, determining, whether the risk score exceeds a threshold indicating the transaction attempt is potentially fraudulent. In response to determining the risk score exceeds the threshold: the method includes determining, whether to approve or decline the transaction attempt; and determining a reason for approving or declining the transaction attempt based on one or more variables contributing to the risk score. The method includes outputting an indication to approve or decline the transaction attempt in response to determining whether to approve or decline the transaction attempt and the reason for approving or declining the transaction attempt.

Abstract: Various systems, mediums, and methods may perform operations, such as collecting various types of data from one or more data sources. Further, the operations may include learning user behaviors based on iterations of the collected historical data with a recurrent neural network (RNN) with long short term memory (LSTM). Yet further, the operations may include determining one or more feature vectors that represents the learned user behaviors. In addition, the operations may include generating one or more models associated with the learned user behaviors based on the one or more determined vectors.