# A Hierarchical Reinforcement Learning Based Optimization Framework for Large-scale Dynamic Pickup and Delivery Problems

> Research article (Neural Information Processing Systems, 2021) · cited 49× · AI/ML

**Wikidata**: [openalex:W3212219118](https://www.wikidata.org/wiki/openalex:W3212219118)  
**Source**: https://4ort.xyz/entity/a-hierarchical-reinforcement-learning-based-optimization-framework-for-large-scale-dynamic-pickup-and-delivery-problems