Scientific Research and Essays

  • Abbreviation: Sci. Res. Essays
  • Language: English
  • ISSN: 1992-2248
  • DOI: 10.5897/SRE
  • Start Year: 2006
  • Published Articles: 2758

Full Length Research Paper

Assessing the performance of improved harmony search algorithm (IHSA) for the optimization of unconstrained functions using Taguchi experimental design

Danijel Marković*, Miloš Madić and Goran Petrović
University of Niš, Faculty of Mechanical Engineering Niš, Aleksandra Medvedeva 14, 18000 Niš, Serbia.
Email: [email protected]

  •  Accepted: 28 February 2012
  •  Published: 31 March 2012


This paper describes the meta-heuristic improved harmony search algorithm (IHSA) and analyzes the performance of IHSA in solving unconstrained function minimization problems. The most important challenge to this algorithm is setting the parameters for various optimization problems. Performance of IHSA is quite sensitive to initial settings. Using Taguchi’s experimental design to arrange IHSA parameters, the performance of IHSA was analyzed to find global optima of Rosenbrock and Wood-Colville function.


Key words: Improved harmony search algorithm, Taguchi experimental design, performance of IHSA, unconstrained function.