Natural language processing Natural language processing systems 13 Deep learning 9 Language processing 5 Natural Language Processing 5 Natural languages 5 Text processing 5 human 5 natural language processing 5 Data mining 4 Long short-term memory 4 Machine learning 4 article 4 Classification (of information) 3 Deep Learning 3 Diseases 3 Embeddings 3 Forecasting 3 Humans 3 Learning algorithms 3 Learning systems 3 Named entity recognition 3 Neural networks 3 Semantics 3 Text analysis 3 Text mining 3 Text-mining 3 Biomedical literature 2 COVID-19 2 Classification 2