Question Answering 6 Artificial intelligence 4 Natural language processing systems 4 Deep learning 3 Expert systems / knowledge-based systems 3 NER 3 Named entity recognition 3 Question answering 3 Technology: general issues 3 human 3 BERT 2 Biomedical question answering 2 Character recognition 2 Computational and corpus linguistics 2 Computational linguistics 2 Data mining 2 Domain Knowledge 2 Domain knowledge 2 History of engineering & technology 2 Humans 2 Information technology industries 2 Machine learning 2 Military engineering 2 Natural Language Processing 2 Natural language and machine translation 2 Neural Networks, Computer 2 RoBERTa 2 article 2 Adverse drug event 1 Algorithms and data structures 1