# Hierarchy Strengthened Grey Wolf Optimizer for Numerical Optimization and Feature Selection

> Research article (IEEE Access, 2019) · cited 81× · AI/ML

**Wikidata**: [openalex:W2949161208](https://www.wikidata.org/wiki/openalex:W2949161208)  
**Source**: https://4ort.xyz/entity/hierarchy-strengthened-grey-wolf-optimizer-for-numerical-optimization-and-feature-selection