Deep reinforcement learning with the confusion-matrix-based dynamic reward function for customer credit scoring

作者:

Highlights:

• Customer credit scoring is formulated as a finite Markov decision process.

• The confusion-matrix-based dynamic reward function (CMDRF) is constructed.

• CMDRF can accelerate the convergence speed and improve the stability of the Deep Q-network (DQN) model.

• The DQN-CMDRF model is proposed for customer credit scoring.

• The proposed model achieves excellent performance in customer credit scoring.

摘要

•Customer credit scoring is formulated as a finite Markov decision process.•The confusion-matrix-based dynamic reward function (CMDRF) is constructed.•CMDRF can accelerate the convergence speed and improve the stability of the Deep Q-network (DQN) model.•The DQN-CMDRF model is proposed for customer credit scoring.•The proposed model achieves excellent performance in customer credit scoring.

论文关键词:Deep reinforcement learning,Deep Q-network,Dynamic reward function,Confusion matrix,Customer credit scoring

论文评审过程:Received 29 June 2021, Revised 14 November 2021, Accepted 27 March 2022, Available online 4 April 2022, Version of Record 5 April 2022.

论文官网地址:https://doi.org/10.1016/j.eswa.2022.117013