Knowledge Discovery in COVID-19 Research Literature Ernesto L Estevanell-Valladares author Suilan Estevez-Velarde author Alejandro Piad-Morffis author Yoan Gutierrez author Andres Montoyo author Rafael Muñoz author Yudivián Almeida Cruz author 2021-09 text Proceedings of the International Conference on Recent Advances in Natural Language Processing (RANLP 2021) Ruslan Mitkov editor Galia Angelova editor INCOMA Ltd. Held Online conference publication estevanell-valladares-etal-2021-knowledge https://aclanthology.org/2021.ranlp-1.46/ 2021-09 402 410