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arXiv 2303.08601cs.CL
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GCRE-GPT:一种用于比较关系抽取的生成式模型

GCRE-GPT: A Generative Model for Comparative Relation Extraction

Beijing Academy of Artificial Intelligence(北京人工智能研究院);Institute of Computing Technology, Chinese Academy of Sciences(中国科学院计算技术研究所);University of Chinese Academy of Sciences(中国科学院大学);School of Computer Science and Engineering, Nanyang Technological University(南洋理工大学计算机科学与工程学院)

Yequan Wang, Hengran Zhang, Aixin Sun, Xuying Meng

AI总结:

本文提出基于GPT-2的生成式模型GCRE-GPT,可直接从比较性文本中提取目标、方面及其比较关系,并在两个数据集上取得最先进准确率。

摘要:

给定比较性文本,比较关系抽取旨在提取比较中的两个目标(例如两台相机)以及它们被比较的方面(例如图像质量)。所提取的比较关系构成了进一步观点分析的基础。现有解决方案将该任务形式化为序列标注任务,以提取目标和方面。然而,它们无法直接从文本中提取比较关系。在本文中,我们证明可以通过生成式模型以高准确率直接提取比较关系。基于GPT-2,我们提出了一种基于生成的比较关系抽取器(GCRE-GPT)。实验结果表明,该模型在两个数据集上达到了最先进的准确率。

英文摘要:

Given comparative text, comparative relation extraction aims to extract two targets (\eg two cameras) in comparison and the aspect they are compared for (\eg image quality). The extracted comparative relations form the basis of further opinion analysis.Existing solutions formulate this task as a sequence labeling task, to extract targets and aspects. However, they cannot directly extract comparative relation(s) from text. In this paper, we show that comparative relations can be directly extracted with high accuracy, by generative model. Based on GPT-2, we propose a Generation-based Comparative Relation Extractor (GCRE-GPT). Experiment results show that \modelname achieves state-of-the-art accuracy on two datasets.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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