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arXiv 2106.09449cs.CL
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DocNLI:一个用于文档级自然语言推理的大规模数据集

DocNLI: A Large-scale Dataset for Document-level Natural Language Inference

Salesforce Research(赛富时研究院);Yale University(耶鲁大学)

Wenpeng Yin, Dragomir Radev, Caiming Xiong

摘要:

自然语言推理(NLI)是一个统一的框架,用于解决各种自然语言处理问题,如关系抽取、问答、摘要等。然而,大多数现有的研究集中在仅仅是中间层的推理,这限制了NLI的应用范围在下游的NLP问题。本文提出了一种新的大规模文档级自然语言集成数据集DocNLI。DocNLI是从广泛的NLP问题转换而来的,涵盖了多种文本类型。前提总是停留在文档粒度上,而假设的长度从单个句子到数百个单词的段落不等。此外,DocNLI具有非常有限的工件,不幸的是,这些工件广泛存在于一些流行的文档级NLI数据集中。我们的实验表明,即使没有微调,在DocNLI上预训练的模型在流行的文档级基准测试中表现出良好的性能,并很好地推广到依赖于文档粒度推理的域外NLP任务。针对特定任务的微调可以带来进一步的改进。数据、代码和预训练模型可以在https://github.com/salesforce/DocNLI上找到。

英文摘要:

Natural language inference (NLI) is formulated as a unified framework for solving various NLP problems such as relation extraction, question answering, summarization, etc. It has been studied intensively in the past few years thanks to the availability of large-scale labeled datasets. However, most existing studies focus on merely sentence-level inference, which limits the scope of NLI's application in downstream NLP problems. This work presents DocNLI -- a newly-constructed large-scale dataset for document-level NLI. DocNLI is transformed from a broad range of NLP problems and covers multiple genres of text. The premises always stay in the document granularity, whereas the hypotheses vary in length from single sentences to passages with hundreds of words. Additionally, DocNLI has pretty limited artifacts which unfortunately widely exist in some popular sentence-level NLI datasets. Our experiments demonstrate that, even without fine-tuning, a model pretrained on DocNLI shows promising performance on popular sentence-level benchmarks, and generalizes well to out-of-domain NLP tasks that rely on inference at document granularity. Task-specific fine-tuning can bring further improvements. Data, code, and pretrained models can be found at https://github.com/salesforce/DocNLI.

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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