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https://hdl.handle.net/10316/114705
Title: | Reducing the Price of Stable Cable Stayed Bridges with CMA-ES | Authors: | Fernandes, Gabriel Lourenço, Nuno Correia, João |
Keywords: | Genetic Algorithm; CMA-ES; Optimization; Cable Stayed Bridges | Issue Date: | 2023 | Publisher: | Springer Science and Business Media Deutschland GmbH | Project: | UIDB/00326/2020 UIDP/00326/2020 |
Serial title, monograph or event: | Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Volume: | 13989 | Abstract: | The design of cable-stayed bridges requires the determination of several design variables’ values. Civil engineers usually perform this task by hand as an iteration of steps that stops when the engineer is happy with both the cost and maintaining the structural constraints of the solution. The problem’s difficulty arises from the fact that changing a variable may affect other variables, meaning that they are not independent, suggesting that we are facing a deceptive landscape. In this work, we compare two approaches to a baseline solution: a Genetic Algorithm and a CMA-ES algorithm. There are two objectives when designing the bridges: minimizing the cost and maintaining the structural constraints in acceptable values to be considered safe. These are conflicting objectives, meaning that decreasing the cost often results in a bridge that is not structurally safe. The results suggest that CMA-ES is a better option for finding good solutions in the search space, beating the baseline with the same amount of evaluations, while the Genetic Algorithm could not. In concrete, the CMA-ES approach is able to design bridges that are cheaper and structurally safe. | URI: | https://hdl.handle.net/10316/114705 | ISSN: | 0302-9743 1611-3349 |
DOI: | 10.1007/978-3-031-30229-9_15 | Rights: | openAccess |
Appears in Collections: | FCTUC Eng.Informática - Artigos em Revistas Internacionais I&D CISUC - Artigos em Revistas Internacionais |
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File | Description | Size | Format | |
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Reducing the Price of Stable Cable Stayed Bridges with CMA-ES_arXiv.pdf | 2.93 MB | Adobe PDF | View/Open |
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