# COVID19 Outbreak: A Hierarchical Framework for User Sentiment Analysis

> Research article (Computers, materials & continua/Computers, materials & continua (Print), 2021) · cited 21× · AI/ML

**Wikidata**: [openalex:W3202758892](https://www.wikidata.org/wiki/openalex:W3202758892)  
**Source**: https://4ort.xyz/entity/covid19-outbreak-a-hierarchical-framework-for-user-sentiment-analysis