# Identification of S1 and S2 Heart Sound Patterns Based on Fractal Theory and Shape Context

> Research article (Complexity, 2017) · cited 15× · AI/ML

**Wikidata**: [openalex:W2770039576](https://www.wikidata.org/wiki/openalex:W2770039576)  
**Source**: https://4ort.xyz/entity/identification-of-s1-and-s2-heart-sound-patterns-based-on-fractal-theory-and-shape-context