A Study Of Credit Risk Based On Data Mining Technology

In recent years,China's credit card market keeps growing at a fast pace.Credit card business has been a competition focus during strategic transformation of commercial banks due to its advantages in expanding client base and increasing income from intermediate business.Meanwhile,credit cards are becoming increasingly popular among domestic consumers due to its characteristics of easy payment and spending with credit.However,with the competition and development of credit card market,credit card risk incidents such as fraudulent use,illegal "cash-out" and malicious overdraft keep occurring,with characteristics of using high technology,occurring in various forms and causing great damage.Current risk management of credit card business in China is at its primary stage,lacking mature external environment and scientific management mechanism,therefore conducting research on credit card risk management is of great significance to the stable and sound development of credit card business.Firstly,this paper describes the credit card industry and credit card categories,analysis on connotation,characteristics and classification of credit risk management;then introduced the credit risk management of the development situation and problems in the risk management process;also used a brief description of the data mining technology.Then to more full of analysis credit card user,through sample of method total selected of has 65,535 sample data,each sample has 27 different properties to on survey object for more detailed of description;through missing value filter,eventually get 61,171 effective data,then and using poly class analysis of method,after times test will whole sample object is divided into has five class,after actual data validation,obtained five class in the fifth class is high risk customer,Banks should be cautious credit attitude towards the customer.Through on 61,171 credit cards with of analysis,obtained following conclusion: China commercial banks risk management of problem,main is lack a independent of credit card risk management sector,and technology compared behind,and no right of risk management concept,and China on credit card of policy and corresponding of legal regulations are not perfect,for these problem,paper proposed has for credit card risk management of related countermeasures,main is to perfect credit card internal risk control mechanism,and strengthening industry self-discipline,Employees in improving overall quality and improve their external environment solution to deal with credit risk.This study found that the level of credit risk management is weak,but as long as the system and improve and perfect the system,our credit card future prospects are very broad,the future will be an important force in China's economic growth.