Journal of the Operations Research Society of China ›› 2024, Vol. 12 ›› Issue (4): 921-936.doi: 10.1007/s40305-024-00548-x

Previous Articles     Next Articles

A New Class of Filled Functions with Two Parameters for Solving Unconstrained Global Optimization Problems

Qiao Chen1,2, Xin-Min Yang3, Qian Yan4   

  1. 1 College of Sciences, Shanghai University, Shanghai 200444, China;
    2 Editing and Publishing Center, Chongqing Normal University, Chongqing 401331, China;
    3 National Center for Applied Mathematics of Chongqing, Chongqing Normal University, Chongqing 401331, China;
    4 College of Science, Chongqing University of Technology, Chongqing 400054, China
  • Received:2023-01-16 Revised:2024-04-23 Online:2024-12-30 Published:2024-12-12
  • Contact: Xin-Min Yang, Qiao Chen, Qian Yan E-mail:xmyang@cqnu.edu.cn;115084448@qq.com;qianyanmath@163.com
  • Supported by:
    This work was supported by the Major Program of the National Natural Science Foundation of China (Nos. 11991020, 11991024) and by the National Natural Science Foundation of China (No. 12271071).

Abstract: A new class of filled functions for escaping the current local minimizer of unconstrained global optimization is proposed. This kind of filled functions is continuously differentiable. And it has no exponential terms and logarithmic terms, which reduce the possibility of computation overflows. Theoretical properties of the proposed filled functions are studied, including discussing the specific conditions that the proposed functions must meet to qualify as a filled function. Then, a new solution algorithm is developed according to the theoretical analysis. Six benchmark problems are tested, and the performance of the new algorithm is compared with two filled function methods. The numerical results prove that the new algorithm is effective and reliable.

Key words: Unconstrained global optimization, Filled function method, Non-convex optimization, Global minimizer

CLC Number: