May 22, 2025 article Open access Understanding question-answering systems: Evolution, applications, trends, and challenges Engineering Applications of Artificial Intelligence DOI: 10.1016/j.engappai.2025.110997 Full text (OA) OpenAlex Authors 0 Author list not loaded yet. Cited by 0 stored of 13 References 1 Search Sort Most cited Newest Oldest Patent citations Title Any typearticle review book-chapter conference-paper preprint dissertation book dataset other Any fieldAgricultural and Biological Sciences Arts and Humanities Biochemistry, Genetics and Molecular Biology Business, Management and Accounting Chemical Engineering Chemistry Computer Science Decision Sciences Dentistry Earth and Planetary Sciences Economics, Econometrics and Finance Energy Engineering Environmental Science Health Professions Immunology and Microbiology Materials Science Mathematics Medicine Neuroscience Nursing Pharmacology, Toxicology and Pharmaceutics Physics and Astronomy Psychology Social Sciences Veterinary Open access Multi-stage hybrid embedding fusion network for visual question answering 2020 Neurocomputing article Computer Science Multimodal Machine Learning Applications cited by 1 patent 21 citations 1 result