This paper introduces a reinforcement learning approach to optimize the Stochastic Vehicle Routing Problem with Time Windows (SVRP), focusing on reducing travel costs in goods delivery. We develop a novel SVRP formulation that accounts for uncertain travel costs and demands, alongside specific customer time windows. An attention-based neural network trained through reinforcement learning is employed to minimize routing costs. Our approach addresses a gap in SVRP research, which traditionally relies on heuristic methods, by leveraging machine learning. The model outperforms the Ant-Colony Optimization algorithm, achieving a 1.73% reduction in travel costs. It uniquely integrates external information, demonstrating robustness in diverse environments, making it a valuable benchmark for future SVRP studies and industry application.
@article{arxiv.2402.09765,
title = {Reinforcement Learning for Solving Stochastic Vehicle Routing Problem with Time Windows},
author = {Zangir Iklassov and Ikboljon Sobirov and Ruben Solozabal and Martin Takac},
journal= {arXiv preprint arXiv:2402.09765},
year = {2024}
}