Towards Expanding WordNet with Conceptual Frames Koeva Svetla author 2021-01 text Proceedings of the 11th Global Wordnet Conference Piek Vossen editor Christiane Fellbaum editor Global Wordnet Association University of South Africa (UNISA) conference publication svetla-2021-towards 10.18653/v1/2021.gwc-1.21 https://aclanthology.org/2021.gwc-1.21/ 2021-01 182 191