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https://hdl.handle.net/20.500.14279/30873
Title: | Ant colony optimization with immigrants schemes in dynamic environments | Authors: | Mavrovouniotis, Michalis Yang, Shengxiang |
Major Field of Science: | Natural Sciences | Field Category: | Computer and Information Sciences | Keywords: | Ant Colony Optimization;Dynamic Optimization;Immigrants Schemes | Issue Date: | 12-Nov-2010 | Source: | 11th International Conference on Parallel Problem Solving from Nature, PPSN 2010, 11 - 15 September 2010 | Volume: | 6239 LNCS | Issue: | PART 2 | Conference: | Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Abstract: | In recent years, there has been a growing interest in addressing dynamic optimization problems (DOPs) using evolutionary algorithms (EAs). Several approaches have been developed for EAs to increase the diversity of the population and enhance the performance of the algorithm for DOPs. Among these approaches, immigrants schemes have been found beneficial for EAs for DOPs. In this paper, random, elitism-based, and hybrid immigrants schemes are applied to ant colony optimization (ACO) for the dynamic travelling salesman problem (DTSP). The experimental results show that random immigrants are beneficial for ACO in fast changing environments, whereas elitism-based immigrants are beneficial for ACO in slowly changing environments. The ACO algorithm with hybrid immigrants scheme combines the merits of the random and elitism-based immigrants schemes. Moreover, the results show that the proposed algorithms outperform compared approaches in almost all dynamic test cases and that immigrant schemes efficiently improve the performance of ACO algorithms in DTSP. © 2010 Springer-Verlag. | URI: | https://hdl.handle.net/20.500.14279/30873 | ISBN: | 3642158706 | ISSN: | 03029743 | DOI: | 10.1007/978-3-642-15871-1_38 | Rights: | © Springer-Verlag | Type: | Conference Papers | Affiliation : | University of Leicester Brunel University London |
Appears in Collections: | Άρθρα/Articles |
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