# RIS-Assisted UAV for Fresh Data Collection in 3D Urban Environments: A Deep Reinforcement Learning Approach

> Research article (IEEE Transactions on Vehicular Technology, 2022) · cited 86× · AI/ML

**Wikidata**: [openalex:W4293704729](https://www.wikidata.org/wiki/openalex:W4293704729)  
**Source**: https://4ort.xyz/entity/ris-assisted-uav-for-fresh-data-collection-in-3d-urban-environments-a-deep-reinforcement-learning-approach