Exploring Public Response to COVID-19 on Weibo with LDA Topic Modeling and Sentiment Analysis.
Runbin XieSamuel Kai-Wah ChuDickson Kak Wah ChiuYangshu WangPublished in: Data Inf. Manag. (2021)
Keyphrases
- topic modeling
- sentiment analysis
- text classification
- text mining
- topic models
- latent dirichlet allocation
- opinion mining
- public opinion
- sentiment classification
- sentence level
- text documents
- latent semantic analysis
- text categorization
- generative model
- product reviews
- latent topics
- sentiment lexicon
- feature selection
- natural language processing
- information retrieval
- text corpora
- co occurrence
- n gram
- k nearest neighbor
- collaborative filtering
- linear discriminant analysis
- knowledge discovery
- probabilistic model
- latent variables
- image classification
- knn
- wordnet
- pairwise
- hierarchical bayesian model
- labeled data