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arXiv 提交日期: 2026-05-14
📄 Abstract - Scalable Solution of the Stochastic Multi-path Traveling Salesman Problem via Neural Networks

The multi-path Traveling Salesman Problem with stochastic travel costs arises in hybrid vehicle routing applications designed for Smart City and City Logistics, where multiple paths exist between each pair of locations. Travel times along these paths are typically affected by real-time traffic conditions and therefore modeled as stochastic. The objective of the problem is to determine a Hamiltonian tour that minimizes the expected total travel cost under uncertainty. In this work, we adopt a two-stage stochastic programming formulation. In the first stage, a predefined route specifying the sequence of locations to be visited is determined, while taking into consideration a second-stage recourse problem that selects the optimal path from the feasible set of alternative paths for each pair of locations, once real-time traffic conditions are realized. To reduce the computational burden imposed by the large number of scenarios required to capture travel time uncertainty, the innovation of this work is the integration of neural network-based surrogate models to approximate the expected value of the second-stage recourse problem. Different architectures and training strategies for the neural networks are proposed and analyzed, with performance evaluated in terms of computation time, solution quality, and generalization capability. Preliminary findings demonstrate the enhanced scalability and practical applicability of the approach for complex vehicle routing problems under uncertainty.

顶级标签: machine learning systems
详细标签: traveling salesman problem neural networks vehicle routing stochastic optimization surrogate model 或 搜索:

基于神经网络的可扩展随机多路径旅行商问题求解方法 / Scalable Solution of the Stochastic Multi-path Traveling Salesman Problem via Neural Networks


1️⃣ 一句话总结

本文提出了一种结合神经网络代理模型的高效方法,用于解决在城市物流中因实时交通不确定性导致的多路径旅行商问题,通过两阶段随机规划策略显著降低了计算复杂度,并验证了其在复杂路线规划中的可扩展性和实用性。

源自 arXiv: 2605.14662