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Multilingual coreference resolution: Adapt and Generate

Tatiana Anikina; Natalia Skachkova; Anna Mokhova
In: Zdeněk ´abokrtský; Maciej Ogrodniczuk (Hrsg.). Proceedings of the CRAC 2023 Shared Task on Multilingual Coreference Resolution. Workshop on Computational Models of Reference, Anaphora and Coreference (CRAC-2023), located at EMNLP 2023, December 6-7, Singapore, Singapore, Pages 19-33, Association for Computational Linguistics, 12/2023.


The paper presents two multilingual coreference resolution systems submitted for the CRAC Shared Task 2023. The DFKI-Adapt system achieves 61.86 F1 score on the shared task test data, outperforming the official baseline by 4.9 F1 points. This system uses a combination of different features and training settings, including character embeddings, adapter modules, joint pre-training and loss-based re-training. We provide evaluation for each of the settings on 12 different datasets and compare the results. The other submission DFKI-MPrompt uses a novel approach that involves prompting for mention generation. Although the scores achieved by this model are lower compared to the baseline, the method shows a new way of approaching the coreference task and provides good results with just five epochs of training.


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