PANG, L.; LAN, Y.; GUO, J.; XU, J.; SU, L.; CHENG, X. HAS-QA: Hierarchical Answer Spans Model for Open-Domain Question Answering. Proceedings of the AAAI Conference on Artificial Intelligence, [S. l.], v. 33, n. 01, p. 6875-6882, 2019. DOI: 10.1609/aaai.v33i01.33016875. Disponível em: https://ojs.aaai.org/index.php/AAAI/article/view/4664. Acesso em: 24 jul. 2024.