Topic detection and sentiment analysis in Twitter content related to COVID-19 from Brazil and the USA.
Klaifer GarciaLilian BertonPublished in: Appl. Soft Comput. (2021)
Keyphrases
- topic detection
- sentiment analysis
- text classification
- social media content
- hot topics
- sentiment classification
- public opinion
- document level
- micro blog
- opinion mining
- user generated
- sentence level
- text data
- user generated content
- social media
- text categorization
- document clustering
- text mining
- machine learning
- product reviews
- sentiment lexicon
- databases
- document collections
- feature selection
- natural language processing
- cross lingual
- positive or negative
- text documents
- data sources
- artificial intelligence
- information retrieval
- neural network