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Improved Grey Wolf Optimization and its application in regression testing

delete2026-05-26
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AI
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Aishwarya Gupta *
B
Bharat Krishan Mahaur
DOI:10.1007/s00500-025-11034-8delete
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Abstract

Abstract

En 中文
Grey Wolf Optimizer (GWO) is a prominent swarm intelligence algorithm that emulates the hunting behavior of grey wolves to solve optimization problems. While GWO performs well in various scenarios, its solution generation primarily relies on exploration, lacking effective exploitation around previously discovered optimal regions. In this work, we propose an improved version of GWO that incorporates best solutions directly into the generation of new solutions, enhancing both convergence speed and solution diversity. Additionally, we present a binary variant of the improved GWO, making it suitable for binary optimization problem, such as regression testing. The proposed binary GWO is applied to the test subset selection problem in regression testing, implemented on the Siemens test suite. Comparative analysis against other swarm intelligence algorithms on benchmark functions and regression testing demonstrates that our proposed variants outperform previous approaches in terms of speed and accuracy.
Keywords:
Grey Wolf Optimizer
Swarm intelligence
Binary GWO
Test subset selection
Regression testing

Journal

Soft Computing cover
Soft Computing
IF:
2.5
Papers:
1.0W
Citations:
2.1W

Organization

I
information technology
Scholars:
180
Papers: 120
Citations: 0
I
it department
Scholars:
13
Papers: 11
Citations: 0