An improved method to construct basic probability assignment based on the confusion matrix for classification problem

• Published in: Information sciences Vol. 340-341; pp. 250 - 261
• Main Authors: Deng, Xinyang, Liu, Qi, Deng, Yong, Mahadevan, Sankaran
• Format: Journal Article
• Language: English
• Published: Elsevier Inc 01.05.2016
• Subjects: Basic probability assignment; Belief function; Classification; Confusion; Confusion matrix; Construction; Dempster–Shafer evidence theory; Information dissemination; Labels; Proteins; Recall; Topology; Transmembrane proteins; Transmembrane proteins; Confusion matrix; Basic probability assignment; Dempster–Shafer evidence theory; Belief function; Classification
• ISSN: 0020-0255; 1872-6291
• DOI: 10.1016/j.ins.2016.01.033

The determination of basic probability assignment (BPA) is a crucial issue in the application of Dempster–Shafer evidence theory. Classification is a process of determining the class label that a sample belongs to. In classification problem, the construction of BPA based on the confusion matrix has been studied. However, the existing methods do not make full use of the available information provided by the confusion matrix. In this paper, an improved method to construct the BPA is proposed based on the confusion matrix. The proposed method takes into account both the precision rate and the recall rate of each class. An illustrative case regarding the prediction of transmembrane protein topology is given to demonstrate the effectiveness of the proposed method.