Optimizing Differentiable Relaxations of Coreference Evaluation Metrics Phong Le author Ivan Titov author 2017-08 text Proceedings of the 21st Conference on Computational Natural Language Learning (CoNLL 2017) Roger Levy editor Lucia Specia editor Association for Computational Linguistics Vancouver, Canada conference publication le-titov-2017-optimizing 10.18653/v1/K17-1039 https://aclanthology.org/K17-1039/ 2017-08 390 399