CleanCoNLL: A Nearly Noise-Free Named Entity Recognition Dataset Susanna Rücker author Alan Akbik author 2023-12 text Proceedings of the 2023 Conference on Empirical Methods in Natural Language Processing Houda Bouamor editor Juan Pino editor Kalika Bali editor Association for Computational Linguistics Singapore conference publication rucker-akbik-2023-cleanconll 10.18653/v1/2023.emnlp-main.533 https://aclanthology.org/2023.emnlp-main.533/ 2023-12 8628 8645