# Hierarchical classification method based on selective learning of slacked hierarchy for activity recognition systems

> Research article (Expert Systems with Applications, 2017) · cited 34× · AI/ML

**Wikidata**: [openalex:W2732400596](https://www.wikidata.org/wiki/openalex:W2732400596)  
**Source**: https://4ort.xyz/entity/hierarchical-classification-method-based-on-selective-learning-of-slacked-hierarchy-for-activity-recognition-systems