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arXiv · 2104.07425

Pseudo Zero Pronoun Resolution Improves Zero Anaphora Resolution

Ryuto Konno·Shun Kiyono·Yuichiroh Matsubayashi·Hiroki Ouchi·Kentaro Inui
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Abstract

Masked language models (MLMs) have contributed to drastic performance improvements with regard to zero anaphora resolution (ZAR). To further improve this approach, in this study, we made two proposals. The first is a new pretraining task that trains MLMs on anaphoric relations with explicit supervision, and the second proposal is a new finetuning method that remedies a notorious issue, the pretrain-finetune discrepancy. Our experiments on Japanese ZAR demonstrated that our two proposals boost the state-of-the-art performance, and our detailed analysis provides new insights on the remaining challenges.

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Ryuto Konno, Shun Kiyono, Yuichiroh Matsubayashi, Hiroki Ouchi, Kentaro Inui. 2021-04-15. Pseudo Zero Pronoun Resolution Improves Zero Anaphora Resolution. https://arxiv.org/abs/2104.07425

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