# GNN-Based Hierarchical Deep Reinforcement Learning for NFV-Oriented Online Resource Orchestration in Elastic Optical DCIs

> Research article (Journal of Lightwave Technology, 2021) · cited 47× · AI/ML

**Wikidata**: [openalex:W3212658727](https://www.wikidata.org/wiki/openalex:W3212658727)  
**Source**: https://4ort.xyz/entity/gnn-based-hierarchical-deep-reinforcement-learning-for-nfv-oriented-online-resource-orchestration-in-elastic-optical-dci