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http://www.repositorio.ufop.br/jspui/handle/123456789/14476
Title: | A non-dominated sorting based customized random-key genetic algorithm for the bi-objective traveling thief problem. |
Authors: | Chagas, Jonatas Batista Costa das Blank, Julian Wagner, Markus Souza, Marcone Jamilson Freitas Deb, Kalyanmoy |
Keywords: | Combinatorial optimization Multi-objective optimization Real-world optimization problem |
Issue Date: | 2020 |
Citation: | CHAGAS, J. B. C. das et al. A non-dominated sorting based customized random-key genetic algorithm for the bi-objective traveling thief problem. Journal of Heuristics, v. 24, p. 267-301, 2020. Disponível em: <https://link.springer.com/article/10.1007/s10732-020-09457-7>. Acesso em: 25 ago. 2021. |
Abstract: | In this paper, we propose a method to solve a bi-objective variant of the well-studied traveling thief problem (TTP). The TTP is a multi-component problem that combines two classic combinatorial problems: traveling salesman problem and knapsack problem. We address the BI-TTP, a bi-objective version of the TTP, where the goal is to minimize the overall traveling time and to maximize the profit of the collected items. Our proposed method is based on a biased-random key genetic algorithm with customizations addressing problem-specific characteristics. We incorporate domain knowledge through a combination of near-optimal solutions of each subproblem in the initial population and use a custom repair operator to avoid the evaluation of infeasible solutions. The bi-objective aspect of the problem is addressed through an elite population extracted based on the non-dominated rank and crowding distance. Furthermore, we provide a comprehensive study showing the influence of each parameter on the performance. Finally, we discuss the results of the BI-TTP competitions at EMO-2019 and GECCO-2019 conferences where our method has won first and second places, respectively, thus proving its ability to find high-quality solutions consistently. |
URI: | http://www.repositorio.ufop.br/jspui/handle/123456789/14476 |
metadata.dc.identifier.uri2: | https://link.springer.com/article/10.1007/s10732-020-09457-7 |
metadata.dc.identifier.doi: | https://doi.org/10.1007/s10732-020-09457-7 |
ISSN: | 1572-9397 |
Appears in Collections: | DECOM - Artigos publicados em periódicos |
Files in This Item:
File | Description | Size | Format | |
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ARTIGO_NonDominatedSorting.pdf Restricted Access | 1,4 MB | Adobe PDF | View/Open |
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