# Comparing News Articles and Tweets About COVID-19 in Brazil: Sentiment Analysis and Topic Modeling Approach

> Research article (JMIR Public Health and Surveillance, 2021) · cited 91× · AI/ML

**Wikidata**: [openalex:W3121269699](https://www.wikidata.org/wiki/openalex:W3121269699)  
**Source**: https://4ort.xyz/entity/comparing-news-articles-and-tweets-about-covid-19-in-brazil-sentiment-analysis-and-topic-modeling-approach