Collaborative Pareto Set Learning in Multiple Multi-Objective Optimization Problems

Chikai Shang1; Rongguang Ye2; Jiaqi Jiang1; Fangqing Gu1

10.1109/IJCNN60899.2024.10649931

2024-07-05

2161-4393

979-8-3503-5932-9

2024 International Joint Conference on Neural Networks (IJCNN)

30 June-5 July 2024

Yokohama, Japan

Pareto Set Learning (PSL) is an emerging research area in multi-objective optimization, focusing on training neural networks to learn the mapping from preference vectors to Pareto optimal solutions. However, existing PSL methods are limited to addressing a single Multi-objective Optimization Problem (MOP) at a time. When faced with multiple MOPs, this limitation results in significant inefficiencies and hinders the ability to exploit potential synergies across varying MOPs. In this paper, we propose a Collaborative Pareto Set Learning (CoPSL) framework, which learns the Pareto sets of multiple MOPs simultaneously in a collaborative manner. CoPSL particularly employs an architecture consisting of shared and MOP-specific layers. The shared layers are designed to capture commonalities among MOPs collaboratively, while the MOP-specific layers tailor these general insights to generate solution sets for individual MOPs. This collaborative approach enables CoPSL to efficiently learn the Pareto sets of multiple MOPs in a single execution while leveraging the potential relationships among various MOPs. To further understand these relationships, we experimentally demonstrate that shareable representations exist among MOPs. Leveraging these shared representations effectively improves the capability to approximate Pareto sets. Extensive experiments underscore the superior efficiency and robustness of CoPSL in approximating Pareto sets compared to state-of-the-art approaches on a variety of synthetic and real-world MOPs. Code is available at https://github.com/ckshang/CoPSL.

其他

1.School of Mathematics and Statistics, Guangdong University of Technology, China
2.Department of Computer Science and Engineering, Southern University of Science and Technology, China

Chikai Shang,Rongguang Ye,Jiaqi Jiang,et al. Collaborative Pareto Set Learning in Multiple Multi-Objective Optimization Problems[C],2024.