Design of fixed and ladder mutation factor-based clonal selection algorithm for solving unimodal and multimodal functions

  • Authors:
  • Suresh Chittineni;A. N. S. Pradeep;Dinesh Godavarthi;Suresh Chandra Satapathy;S. Mohan Krishna;P. V. G. D. Prasad Reddy

  • Affiliations:
  • Anil Neerukonda Institute of Technology and Sciences, Visakhapatnam, Andhra Pradesh, India;Anil Neerukonda Institute of Technology and Sciences, Visakhapatnam, Andhra Pradesh, India;Anil Neerukonda Institute of Technology and Sciences, Visakhapatnam, Andhra Pradesh, India;Anil Neerukonda Institute of Technology and Sciences, Visakhapatnam, Andhra Pradesh, India;Gitam University, Visakhapatnam, India;Andhra University Engineering College, Visakhapatnam, Andhra Pradesh, India

  • Venue:
  • Applied Computational Intelligence and Soft Computing
  • Year:
  • 2011

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Abstract

Clonal selection algorithms (CSAs) is a special class of immune algorithms (IA), inspired by the clonal selection principle of the human immune system. To improve the algorithm's ability to perform better, this CSA has been modified by implementing two new concepts called fixed mutation factor and ladder mutation factor. Fixed mutation factor maintains a constant factor throughout the process, where as ladder mutation factor changes adaptively based on the affinity of antibodies. This paper compared the conventional CLONALG, with the two proposed approaches and tested on several standard benchmark functions. Experimental results empirically show that the proposedmethods laddermutation-based clonal selection algorithm (LMCSA) and fixed mutation clonal selection algorithm (FMCSA) significantly outperform the existing CLONALG method in terms of quality of the solution, convergence speed, and solution stability.