2018/12/12 by Guang‐Hui Fu, Lun‐Zhao Yi, Lunzhao Yi +1
Computer Science · Engineering · #Electricity Theft Detection Techniques #Imbalanced Data Classification Techniques #Text and Document Classification Technologies
paper · doi:10.1002/bimj.201800148
openalex publication_date 2018/12/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/29
An issue for class-imbalanced learning is what assessment metric should be employed. So far, precision-recall curve (PRC) as a metric is rarely used in practice as compared with its alternative of receiver operating characteristic (ROC). This study investigates the performance of PRC as the evaluating criterion to address the class-imbalanced data and focuses on the comparison of PRC with ROC. The advantages of PRC over ROC on assessing class-imbalanced data are also investigated and tested on our proposed algorithm by tuning the whole model parameters in simulation studies and real data examples. The result shows that PRC is competitive with ROC as performance measurement for handling class-imbalanced data in tuning the model parameters. PRC can be considered as an alternative but effective assessment for preprocessing (such as variable selection) skewed data and building a classifier in class-imbalanced learning.