# A hierarchy-based machine learning model for happiness prediction

> Research article (Applied Intelligence, 2022) · cited 13× · AI/ML

**Wikidata**: [openalex:W4285388004](https://www.wikidata.org/wiki/openalex:W4285388004)  
**Source**: https://4ort.xyz/entity/a-hierarchy-based-machine-learning-model-for-happiness-prediction