# Patient privacy in smart cities by blockchain technology and feature selection with Harris Hawks Optimization (HHO) algorithm and machine learning

> Research article (Multimedia Tools and Applications, 2022) · cited 29× · AI/ML

**Wikidata**: [openalex:W4210632374](https://www.wikidata.org/wiki/openalex:W4210632374)  
**Source**: https://4ort.xyz/entity/patient-privacy-in-smart-cities-by-blockchain-technology-and-feature-selection-with-harris-hawks-optimization-hho-algori