Cross projects defect prediction modeling

Abstract

Software defect prediction has been much studied in the field of research in Software Engineering.Within project Software defect prediction works well as there is sufficient amount of data available to train anymodel. But rarely local training data of the projects is available for predictions. There are many public defect data repositories available from various organizations. This availability leads to the motivation for Cross projects defect prediction. This chapter cites on defect prediction using cross projects defect data. We proposed two experiments with cross projects homogeneous metric set data and within projects data on open source software projects with class level information. The machine learning models including the ensemble approaches are used for prediction. The class imbalance problem is addressed using oversampling techniques. An empirical analysis is carried out to validate the performance of the models. The results indicate that cross projects defect prediction with homogeneous metric sets are comparable to within project defect prediction with statistical significance.