Hybrid whale optimized crow search algorithm and multi-SVM classifier for effective system level test case selection

• Published in: Journal of intelligent & fuzzy systems Vol. 46; no. 2; pp. 4191 - 4207
• Main Authors: Tamizharasi, A., Ezhumalai, P.
• Format: Journal Article
• Language: English
• Published: London, England SAGE Publications 14.02.2024; Sage Publications Ltd
• Subjects: Classifiers; Clustering; Feature extraction; Optimization; Optimization algorithms; Performance measurement; Search algorithms; Software testing; Support vector machines; Context encoder; WOA; FCM; pre-processing; HWOCSA
• ISSN: 1064-1246; 1875-8967
• DOI: 10.3233/JIFS-232700

A novel approach to enhance software testing through intelligent test case selection is proposed in this work. The proposed method combines feature extraction, clustering, and a hybrid optimization algorithm to improve testing effectiveness while reducing resource overhead. It employs a context encoder to extract relevant features from software code, enhancing the accuracy of subsequent testing. Through the use of Fuzzy C-means (FCM) clustering, the test cases are classified into groups, streamlining the testing process by identifying similar cases. To optimize feature selection, a Hybrid Whale Optimized Crow Search Algorithm (HWOCSA), which intelligently combines the strengths of both Whale Optimization Algorithm (WOA) and Crow Search Algorithm (CSA) is introduced. This hybrid approach mitigates limitations while maximizing the selection of pertinent features for testing. The ultimate contribution of this work lies in the proposal of a multi-SVM classifier, which refines the test case selection process. Each classifier learns specific problem domains, generating predictions that guide the selection of test cases with unprecedented precision. Experimental results demonstrate that the proposed method achieves remarkable improvements in testing outcomes, including enhanced performance metrics, reduced computation time, and minimized training data requirements. By significantly streamlining the testing process and accurately selecting relevant test cases, this work paves the way for higher quality software updates at a reduced cost.