# Hierarchical Data Augmentation and the Application in Text Classification

> Research article (IEEE Access, 2019) · cited 30× · AI/ML

**Wikidata**: [openalex:W2995253144](https://www.wikidata.org/wiki/openalex:W2995253144)  
**Source**: https://4ort.xyz/entity/hierarchical-data-augmentation-and-the-application-in-text-classification