Relation Classification via Relation Validation José G Moreno author Antoine Doucet author Brigitte Grau author 2021-01 text Proceedings of the 6th Workshop on Semantic Deep Learning (SemDeep-6) Luis Espinosa-Anke editor Dagmar Gromann editor Thierry Declerck editor Anna Breit editor Jose Camacho-Collados editor Mohammad Taher Pilehvar editor Artem Revenko editor Association for Computational Linguistics Online conference publication moreno-etal-2021-relation https://aclanthology.org/2021.semdeep-1.4/ 2021-01 20 27