A Controlled Reevaluation of Coreference Resolution Models

Fuente: arXiv
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Hauptverfasser: Porada, Ian, Zou, Xiyuan, Cheung, Jackie Chi Kit
Format: Preprint
Veröffentlicht: 2024
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author Porada, Ian
Zou, Xiyuan
Cheung, Jackie Chi Kit
author_facet Porada, Ian
Zou, Xiyuan
Cheung, Jackie Chi Kit
contents All state-of-the-art coreference resolution (CR) models involve finetuning a pretrained language model. Whether the superior performance of one CR model over another is due to the choice of language model or other factors, such as the task-specific architecture, is difficult or impossible to determine due to lack of a standardized experimental setup. To resolve this ambiguity, we systematically evaluate five CR models and control for certain design decisions including the pretrained language model used by each. When controlling for language model size, encoder-based CR models outperform more recent decoder-based models in terms of both accuracy and inference speed. Surprisingly, among encoder-based CR models, more recent models are not always more accurate, and the oldest CR model that we test generalizes the best to out-of-domain textual genres. We conclude that controlling for the choice of language model reduces most, but not all, of the increase in F1 score reported in the past five years.
format Preprint
id arxiv_https___arxiv_org_abs_2404_00727
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle A Controlled Reevaluation of Coreference Resolution Models
Porada, Ian
Zou, Xiyuan
Cheung, Jackie Chi Kit
Computation and Language
All state-of-the-art coreference resolution (CR) models involve finetuning a pretrained language model. Whether the superior performance of one CR model over another is due to the choice of language model or other factors, such as the task-specific architecture, is difficult or impossible to determine due to lack of a standardized experimental setup. To resolve this ambiguity, we systematically evaluate five CR models and control for certain design decisions including the pretrained language model used by each. When controlling for language model size, encoder-based CR models outperform more recent decoder-based models in terms of both accuracy and inference speed. Surprisingly, among encoder-based CR models, more recent models are not always more accurate, and the oldest CR model that we test generalizes the best to out-of-domain textual genres. We conclude that controlling for the choice of language model reduces most, but not all, of the increase in F1 score reported in the past five years.
title A Controlled Reevaluation of Coreference Resolution Models
topic Computation and Language
url https://arxiv.org/abs/2404.00727