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arXiv 2012.14500cs.CL
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用于科学事实验证的段落级多任务学习模型

A Paragraph-level Multi-task Learning Model for Scientific Fact-Verification

University of Texas at Dallas(德克萨斯大学达拉斯分校);Chan Zuckerburg Initiative(陈-扎克伯格倡议);University of California Los Angeles(加州大学洛杉矶分校)

Xiangci Li, Gully Burns, Nanyun Peng

AI总结:

针对科学主张验证难题,本文提出面向 SciFact 的段落级多任务模型,利用 BERT 句子嵌入联合训练理由选择与立场预测,以辅助遏制错误信息传播。

摘要:

即使对领域专家而言,通过提供支持或反驳的证据理由来验证一项科学主张,也并非易事。随着错误信息每时每刻都在社交媒体或新闻网站上以人工或程序化方式扩散,情况进一步恶化。因此,自动化事实验证工具对于遏制错误信息传播变得至关重要。在本研究中,我们针对 SciFact 任务提出了一种新颖的段落级多任务学习模型:该模型直接从 BERT 模型计算一系列上下文化句子嵌入,并在理由选择和立场预测上对模型进行联合训练。

英文摘要:

Even for domain experts, it is a non-trivial task to verify a scientific claim by providing supporting or refuting evidence rationales. The situation worsens as misinformation is proliferated on social media or news websites, manually or programmatically, at every moment. As a result, an automatic fact-verification tool becomes crucial for combating the spread of misinformation. In this work, we propose a novel, paragraph-level, multi-task learning model for the SciFact task by directly computing a sequence of contextualized sentence embeddings from a BERT model and jointly training the model on rationale selection and stance prediction.

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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