User service security comprehensive risk assessment method based on combined weighting

• Main Authors: JI LI, GE SHENGLI, ZHONG DANYANG, QIAN QINYING, WEI GUOFU
• Format: Patent
• Language: Chinese; English
• Published: 03.07.2020
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; HANDLING RECORD CARRIERS; PHYSICS; PRESENTATION OF DATA; RECOGNITION OF DATA; RECORD CARRIERS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention discloses a user service security comprehensive risk assessment method based on combined empowerment, and aims to solve the problem that the existing user risk behavior is difficult to reflect in the whole process. The method comprises the following specific steps: step 1, data processing: carrying out frequency statistics, proportion calculation and labeling on original data; step 2, risk index screening: risk index screening is carried out from two aspects of discrimination and similarity; 3, calculating the weighting coefficient of a single method; and step 4, solving a combined weighting weight of a plurality of weighting methods, and calculating a comprehensive risk score of each user. According to the invention, an index and model combined weight generation method is provided, the user overall risk scoring method has a risk identification capability, risk customers and non-risk customers can be significantly distinguished through scoring, and a security risk level evaluation system is more