A novel software defect prediction based on atomic class-association rule mining

To ensure the rational allocation of software testing resources and reduce costs, software defect prediction has drawn notable attention to many “white-box” and “black-box” classification algorithms. Although there have been lots of studies on using software product metrics to identify defect-prone modules, defect prediction algorithms are still worth exploring. For instance, it is not easy to directly implement the Apriori algorithm to classify defect-prone modules across a skewed dataset. Therefore, we propose a novel supervised approach for software defect prediction based on atomic class-association rule mining (ACAR). It holds the characteristics of only one feature of the antecedent and a unique class label of the consequent, which is a specific kind of association rules that explores the relationship between attributes and categories. It holds the characteristics of only one feature of the antecedent and a unique class label of the consequent, which is a specific kind of association rules that explores the relationship between attributes and categories. Such association patterns can provide meaningful knowledge that can be easily understood by software engineers. A new software defect prediction model infrastructure based on association rules is employed to improve the prediction of defect-prone modules, which is divided into data preprocessing, rule model building and performance evaluation. Moreover, ACAR can achieve a satisfactory classification performance compared with other seven benchmark learners (the extension of classification based on associations (CBA2), Support Vector Machine, Naive Bayesian, Decision Tree, OneR, K-nearest Neighbors and RIPPER) on NASA MDP and PROMISE datasets. In light of software defect associative prediction, a comparative experiment between ACAR and CBA2 is discussed in details. It is demonstrated that ACAR is better than CBA2 in terms of AUC, G-mean, Balance, and understandability. In addition, the average AUC of ACAR is increased by 2.9% compared with CBA2, which can reach 81.1%.