Sentiment analysis 31 sentiment analysis 27 Deep learning 9 Information technology industries 9 Social networking (online) 9 Machine learning 7 Twitter 7 human 7 COVID-19 6 Computer science 6 History of engineering and technology 6 Social media 6 social media 6 Classification (of information) 5 Natural Language Processing 5 Semantics 5 Sentiment Analysis 5 Technology: general issues 5 article 5 natural language processing 5 deep learning 4 machine learning 4 Embeddings 3 Humans 3 Learning systems 3 Long short-term memory 3 Mathematics & science 3 Research & information: general 3 XGBoost 3 Artificial intelligence 2