MMAX2 for coreference annotation Mateusz Kopeć author 2014-04 text Proceedings of the Demonstrations at the 14th Conference of the European Chapter of the Association for Computational Linguistics Shuly Wintner editor Marko Tadić editor Bogdan Babych editor Association for Computational Linguistics Gothenburg, Sweden conference publication kopec-2014-mmax2 10.3115/v1/E14-2024 https://aclanthology.org/E14-2024/ 2014-04 93 96