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Credit score classification using spiking extreme learning machine - 2020

Research Area:  Machine Learning

Abstract:

Credit score classification is a prominent research problem in the banking or financial industry, and its predictive performance is responsible for the profitability of financial industry. This paper addresses how Spiking Extreme Learning Machine (SELM) can be effectively used for credit score classification. A novel spike-generating function is proposed in Leaky Nonlinear Integrate and Fire Model (LNIF). Its interspike period is computed and utilized in the extreme learning machine (ELM) for credit score classification. The proposed model is named as SELM and is validated on five real-world credit scoring datasets namely: Australian, German-categorical, German-numerical, Japanese, and Bankruptcy. Further, results obtained by SELM are compared with back propagation, probabilistic neural network, ELM, voting-based Q-generalized extreme learning machine, Radial basis neural network and ELM with some existing spiking neuron models in terms of classification accuracy, Area under curve (AUC), H-measure and computational time. From the experimental results, it has been noticed that improvement in accuracy and execution time for the proposed SELM is highly statistically important for all aforementioned credit scoring datasets. Thus, integrating a biological spiking function with ELM makes it more efficient for categorization.

Author(s) Name:  Venkatanareshbabu Kuppili, Diwakar Tripathi, Damodar Reddy Edla

Journal name:  Computational Intelligence

Conferrence name:  

Publisher name:  Wiley

DOI:  10.1111/coin.12242

Volume Information:  Volume36, Issue2 May 2020 Pages 402-426