{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,30]],"date-time":"2025-12-30T11:17:04Z","timestamp":1767093424794},"reference-count":18,"publisher":"World Scientific Pub Co Pte Lt","issue":"09n10","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int. J. Soft. Eng. Knowl. Eng."],"published-print":{"date-parts":[[2015,11]]},"abstract":"<jats:p> Defect prediction is an important process activity frequently used for improving the quality and reliability of software products. Defect prediction results provide a list of fault-prone modules which are necessary in helping project managers better utilize valuable project resources. In the software quality modeling process, high dimensionality and class imbalance are the two potential problems that may exist in data repositories. In this study, we investigate three data preprocessing approaches, in which feature selection is combined with data sampling, to overcome these problems in the context of software quality estimation. These three approaches are: Approach 1 \u2014 sampling performed prior to feature selection, but retaining the unsampled data instances; Approach 2 \u2014 sampling performed prior to feature selection, retaining the sampled data instances; and Approach 3 \u2014 sampling performed after feature selection. A comparative investigation is presented for evaluating the three approaches. In the experiments, we employed three sampling methods (random undersampling, random oversampling, and synthetic minority oversampling), each combined with a filter-based feature subset selection technique called correlation-based feature selection. We built the defect prediction models using five common classification algorithms. The case study was based on software metrics and defect data collected from multiple releases of a real-world software system. The results demonstrated that the type of sampling methods used in data preprocessing significantly affected the performance of the combination approaches. It was found that when the random undersampling technique was used, Approach 1 performed better than the other two approaches. However, when the feature selection technique was used in conjunction with an oversampling method (random oversampling or synthetic minority oversampling), we strongly recommended Approach 3. <\/jats:p>","DOI":"10.1142\/s0218194015400318","type":"journal-article","created":{"date-parts":[[2016,3,17]],"date-time":"2016-03-17T03:02:09Z","timestamp":1458183729000},"page":"1531-1550","source":"Crossref","is-referenced-by-count":8,"title":["Aggregating Data Sampling with Feature Subset Selection to Address Skewed Software Defect Data"],"prefix":"10.1142","volume":"25","author":[{"given":"Kehan","family":"Gao","sequence":"first","affiliation":[{"name":"Department of Mathematics and Computer Science, Eastern Connecticut State University, Willimantic, CT 06226, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Taghi M.","family":"Khoshgoftaar","sequence":"additional","affiliation":[{"name":"Department of Computer &amp; Electrical Engineering and Computer Science, Florida Atlantic University, Boca Raton, FL 33431, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Amri","family":"Napolitano","sequence":"additional","affiliation":[{"name":"Department of Computer &amp; Electrical Engineering and Computer Science, Florida Atlantic University, Boca Raton, FL 33431, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"219","published-online":{"date-parts":[[2016,3,16]]},"reference":[{"issue":"2","key":"S0218194015400318BIB001","first-page":"56","volume":"2","author":"Pandey A. 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