CovRelex: A COVID-19 Retrieval System with Relation Extraction Vu Tran author Van-Hien Tran author Phuong Nguyen author Chau Nguyen author Ken Satoh author Yuji Matsumoto author Minh Nguyen author 2021-04 text Proceedings of the 16th Conference of the European Chapter of the Association for Computational Linguistics: System Demonstrations Dimitra Gkatzia editor Djamé Seddah editor Association for Computational Linguistics Online conference publication tran-etal-2021-covrelex 10.18653/v1/2021.eacl-demos.4 https://aclanthology.org/2021.eacl-demos.4/ 2021-04 24 31