Semi-supervised New Event Type Induction and Description via Contrastive Loss-Enforced Batch Attention Carl Edwards author Heng Ji author 2023-05 text Proceedings of the 17th Conference of the European Chapter of the Association for Computational Linguistics Andreas Vlachos editor Isabelle Augenstein editor Association for Computational Linguistics Dubrovnik, Croatia conference publication edwards-ji-2023-semi 10.18653/v1/2023.eacl-main.275 https://aclanthology.org/2023.eacl-main.275/ 2023-05 3805 3827