# Using concept hierarchies to improve calculation of patient similarity

> Research article (Journal of Biomedical Informatics, 2016) · cited 46× · AI/ML

**Wikidata**: [openalex:W2493311319](https://www.wikidata.org/wiki/openalex:W2493311319)  
**Source**: https://4ort.xyz/entity/using-concept-hierarchies-to-improve-calculation-of-patient-similarity