A new filled function method based on global search for solving unconstrained optimization problems
The filled function method is a deterministic algorithm for finding a global minimizer of global optimization problems, and its effectiveness is closely related to the form of the constructed filled function. Currently, the filled functions mainly have three drawbacks in form, namely, parameter adju...
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| Vydáno v: | AIMS mathematics Ročník 9; číslo 7; s. 18475 - 18505 |
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| Médium: | Journal Article |
| Jazyk: | angličtina |
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AIMS Press
01.06.2024
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| ISSN: | 2473-6988, 2473-6988 |
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| Abstract | The filled function method is a deterministic algorithm for finding a global minimizer of global optimization problems, and its effectiveness is closely related to the form of the constructed filled function. Currently, the filled functions mainly have three drawbacks in form, namely, parameter adjustment and control (if any), inclusion of exponential or logarithmic functions, and properties that are discontinuous and non-differentiable. In order to overcome these limitations, this paper proposed a parameter-free filled function that does not include exponential or logarithmic functions and is continuous and differentiable. Based on the new filled function, a filled function method for solving unconstrained global optimization problems was designed. The algorithm selected points in the feasible domain that were far from the global minimum point as initial points, and improved the setting of the step size in the stage of minimizing the filled function to enhance the algorithm's global optimization capability. In addition, tests were conducted on 14 benchmark functions and compared with existing filled function algorithms. The numerical experimental results showed that the new algorithm proposed in this paper was feasible and effective. |
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| AbstractList | The filled function method is a deterministic algorithm for finding a global minimizer of global optimization problems, and its effectiveness is closely related to the form of the constructed filled function. Currently, the filled functions mainly have three drawbacks in form, namely, parameter adjustment and control (if any), inclusion of exponential or logarithmic functions, and properties that are discontinuous and non-differentiable. In order to overcome these limitations, this paper proposed a parameter-free filled function that does not include exponential or logarithmic functions and is continuous and differentiable. Based on the new filled function, a filled function method for solving unconstrained global optimization problems was designed. The algorithm selected points in the feasible domain that were far from the global minimum point as initial points, and improved the setting of the step size in the stage of minimizing the filled function to enhance the algorithm's global optimization capability. In addition, tests were conducted on 14 benchmark functions and compared with existing filled function algorithms. The numerical experimental results showed that the new algorithm proposed in this paper was feasible and effective. |
| Author | Gao, Yuelin Li, Jia Chen, Tiantian Ma, Xiaohua |
| Author_xml | – sequence: 1 givenname: Jia surname: Li fullname: Li, Jia organization: School of Mathematics and Information Sciences, North Minzu University, Yinchuan 750021, China – sequence: 2 givenname: Yuelin surname: Gao fullname: Gao, Yuelin organization: Ningxia province cooperative innovation center of scientific computing and intelligent information processing, North Minzu University, Yinchuan 750021, China – sequence: 3 givenname: Tiantian surname: Chen fullname: Chen, Tiantian organization: School of Mathematics and Information Sciences, North Minzu University, Yinchuan 750021, China – sequence: 4 givenname: Xiaohua surname: Ma fullname: Ma, Xiaohua organization: Ningxia province cooperative innovation center of scientific computing and intelligent information processing, North Minzu University, Yinchuan 750021, China |
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| SubjectTerms | filled function method global minimizer parameter-free step size setting unconstrained global optimization |
| Title | A new filled function method based on global search for solving unconstrained optimization problems |
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