MVMoE: Multi-Task Vehicle Routing Solver with Mixture-of-Experts

التفاصيل البيبلوغرافية
العنوان: MVMoE: Multi-Task Vehicle Routing Solver with Mixture-of-Experts
المؤلفون: Zhou, Jianan, Cao, Zhiguang, Wu, Yaoxin, Song, Wen, Ma, Yining, Zhang, Jie, Xu, Chi
سنة النشر: 2024
المجموعة: Computer Science
مصطلحات موضوعية: Computer Science - Artificial Intelligence, Computer Science - Machine Learning
الوصف: Learning to solve vehicle routing problems (VRPs) has garnered much attention. However, most neural solvers are only structured and trained independently on a specific problem, making them less generic and practical. In this paper, we aim to develop a unified neural solver that can cope with a range of VRP variants simultaneously. Specifically, we propose a multi-task vehicle routing solver with mixture-of-experts (MVMoE), which greatly enhances the model capacity without a proportional increase in computation. We further develop a hierarchical gating mechanism for the MVMoE, delivering a good trade-off between empirical performance and computational complexity. Experimentally, our method significantly promotes zero-shot generalization performance on 10 unseen VRP variants, and showcases decent results on the few-shot setting and real-world benchmark instances. We further conduct extensive studies on the effect of MoE configurations in solving VRPs, and observe the superiority of hierarchical gating when facing out-of-distribution data. The source code is available at: https://github.com/RoyalSkye/Routing-MVMoETest.
Comment: Accepted at ICML 2024
نوع الوثيقة: Working Paper
الوصول الحر: http://arxiv.org/abs/2405.01029Test
رقم الانضمام: edsarx.2405.01029
قاعدة البيانات: arXiv