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Coreference Resolution through a seq2seq Transition-Based System

delete2023-03-14
delete9
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OA
AI
B
Bernd Bohnet *
C
Chris Alberti
M
Michael J. Collins
DOI:10.1162/tacl_a_00543delete
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Abstract

Abstract

En 中文
Most recent coreference resolution systems use search algorithms over possible spans to identify mentions and resolve coreference. We instead present a coreference resolution system that uses a text-to-text (seq2seq) paradigm to predict mentions and links jointly. We implement the coreference system as a transition system and use multilingual T5 as an underlying language model. We obtain state-of-the-art accuracy on the CoNLL-2012 datasets with 83.3 F1-score for English (a 2.3 higher F1-score than previous work [Dobrovolskii, 2021]) using only CoNLL data for training, 68.5 F1-score for Arabic (+4.1 higher than previous work), and 74.3 F1-score for Chinese (+5.3). In addition we use the SemEval-2010 data sets for experiments in the zero-shot setting, a few-shot setting, and supervised setting using all available training data. We obtain substantially higher zero-shot F1-scores for 3 out of 4 languages than previous approaches and significantly exceed previous supervised state-of-the-art results for all five tested languages. We provide the code and models as open source.(1)

Journal

T
Transactions of the Association for Computational Linguistics
IF:
6.9
Papers:
486
Citations:
5.7K

Organization

G
Google Incorporated
Scholars:
3.5K
Papers: 1.8K
Citations: 8
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