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A Novel Approach to Improve the Performance of Evolutionary Methods for Nonlinear Constrained Optimization
Joint Authors
Efati, Sohrab
Rowhanimanesh, Alireza
Source
Advances in Artificial Intelligence
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-08-26
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Information Technology and Computer Science
Science
Abstract EN
Evolutionary methods are well-known techniques for solving nonlinear constrained optimization problems.
Due to the exploration power of evolution-based optimizers, population usually converges to a region around global optimum after several generations.
Although this convergence can be efficiently used to reduce search space, in most of the existing optimization methods, search is still continued over original space and considerable time is wasted for searching ineffective regions.
This paper proposes a simple and general approach based on search space reduction to improve the exploitation power of the existing evolutionary methods without adding any significant computational complexity.
After a number of generations when enough exploration is performed, search space is reduced to a small subspace around the best individual, and then search is continued over this reduced space.
If the space reduction parameters (red_gen and red_factor) are adjusted properly, reduced space will include global optimum.
The proposed scheme can help the existing evolutionary methods to find better near-optimal solutions in a shorter time.
To demonstrate the power of the new approach, it is applied to a set of benchmark constrained optimization problems and the results are compared with a previous work in the literature.
American Psychological Association (APA)
Rowhanimanesh, Alireza& Efati, Sohrab. 2012. A Novel Approach to Improve the Performance of Evolutionary Methods for Nonlinear Constrained Optimization. Advances in Artificial Intelligence،Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-479938
Modern Language Association (MLA)
Rowhanimanesh, Alireza& Efati, Sohrab. A Novel Approach to Improve the Performance of Evolutionary Methods for Nonlinear Constrained Optimization. Advances in Artificial Intelligence No. 2012 (2012), pp.1-7.
https://search.emarefa.net/detail/BIM-479938
American Medical Association (AMA)
Rowhanimanesh, Alireza& Efati, Sohrab. A Novel Approach to Improve the Performance of Evolutionary Methods for Nonlinear Constrained Optimization. Advances in Artificial Intelligence. 2012. Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-479938
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-479938