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Heat source layout optimization using automatic deep learning surrogate and multimodal neighborhood search algorithm.

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Title: Heat source layout optimization using automatic deep learning surrogate and multimodal neighborhood search algorithm.
Authors: Sun, Jialiang1 (AUTHOR) sun1903676706@163.com, Zheng, Xiaohu2 (AUTHOR) zhengboy320@163.com, Yao, Wen1 (AUTHOR) wendy0782@126.com, Zhang, Xiaoya1 (AUTHOR) zhangxiaoya09@nudt.edu.cn, Zhou, Weien1 (AUTHOR) weienzhou@outlook.com, Chen, Xiaoqian1 (AUTHOR) chenxiaoqian@nudt.edu.cn
Source: Annals of Operations Research. May2025, Vol. 348 Issue 1, p345-371. 27p.
Subjects: Optimization algorithms, Computational mathematics, Deep learning, Artificial intelligence, Search algorithms
Abstract: Deep learning surrogate assisted heat source layout optimization (HSLO) could learn the mapping from layout to its corresponding temperature field, so as to substitute the simulation during optimization to decrease the computational cost largely. However, it faces two main challenges: (1) the neural network surrogate for the certain task is often manually designed to be complex and requires rich debugging experience, which is challenging for the designers in the engineering field; (2) existing algorithms for HSLO could only obtain a near optimal solution in single optimization and are easily trapped in local optimum. To address the first challenge, considering reducing the total parameter numbers and ensuring the similar accuracy as well as, a neural architecture search (NAS) method combined with Feature Pyramid Network (FPN) framework is developed to realize the purpose of automatically searching for a small deep learning surrogate model for HSLO. To address the second challenge, a multimodal neighborhood search based layout optimization algorithm (MNSLO) is proposed, which could obtain more and better approximate optimal design schemes simultaneously in single optimization. Finally, two typical two-dimensional heat conduction optimization problems are utilized to demonstrate the effectiveness of the proposed method. With the similar accuracy, NAS finds models with 80 % fewer parameters, 64 % fewer FLOPs and 36 % faster inference time than the original FPN. Besides, with the assistance of deep learning surrogate by automatic search, MNSLO could achieve multiple near optimal design schemes simultaneously to provide more design diversities for designers. [ABSTRACT FROM AUTHOR]
Copyright of Annals of Operations Research is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: <searchLink fieldCode="JN" term="%22Annals+of+Operations+Research%22">Annals of Operations Research</searchLink>. May2025, Vol. 348 Issue 1, p345-371. 27p.
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  Data: Deep learning surrogate assisted heat source layout optimization (HSLO) could learn the mapping from layout to its corresponding temperature field, so as to substitute the simulation during optimization to decrease the computational cost largely. However, it faces two main challenges: (1) the neural network surrogate for the certain task is often manually designed to be complex and requires rich debugging experience, which is challenging for the designers in the engineering field; (2) existing algorithms for HSLO could only obtain a near optimal solution in single optimization and are easily trapped in local optimum. To address the first challenge, considering reducing the total parameter numbers and ensuring the similar accuracy as well as, a neural architecture search (NAS) method combined with Feature Pyramid Network (FPN) framework is developed to realize the purpose of automatically searching for a small deep learning surrogate model for HSLO. To address the second challenge, a multimodal neighborhood search based layout optimization algorithm (MNSLO) is proposed, which could obtain more and better approximate optimal design schemes simultaneously in single optimization. Finally, two typical two-dimensional heat conduction optimization problems are utilized to demonstrate the effectiveness of the proposed method. With the similar accuracy, NAS finds models with 80 % fewer parameters, 64 % fewer FLOPs and 36 % faster inference time than the original FPN. Besides, with the assistance of deep learning surrogate by automatic search, MNSLO could achieve multiple near optimal design schemes simultaneously to provide more design diversities for designers. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Annals of Operations Research is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s10479-023-05262-0
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        Text: English
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      – SubjectFull: Computational mathematics
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      – SubjectFull: Deep learning
        Type: general
      – SubjectFull: Artificial intelligence
        Type: general
      – SubjectFull: Search algorithms
        Type: general
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      – TitleFull: Heat source layout optimization using automatic deep learning surrogate and multimodal neighborhood search algorithm.
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            NameFull: Sun, Jialiang
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              M: 05
              Text: May2025
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