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arXiv 2004.10645cs.CLcs.AI
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AmbigQA:解决Ambient开放域问题

AmbigQA: Answering Ambiguous Open-domain Questions

Facebook AI Research(脸书人工智能研究院);Allen Institute for Artificial Intelligence(艾伦人工智能研究所);University of Washington(华盛顿大学)

Sewon Min, Julian Michael, Hannaneh Hajishirzi, Luke Zettlemoyer

摘要:

开放域问答固有的模糊性;特别是在探索新主题时,很难提出只有一个明确答案的问题。在本文中,我们介绍了AmbigQA,一个新的开放领域的问答任务,它涉及到找到每一个合理的答案,然后重写的问题,为每一个解决歧义。为了研究这项任务,我们构建了AmbigNQ,这是一个涵盖现有开放领域QA基准NQ-open中14,042个问题的数据集。我们发现NQ-open中超过一半的问题是模糊的,具有不同的模糊性来源,如事件和实体引用。我们还为AmbigQA提供了强大的基线模型,我们从结合NQ-open的弱监督学习中受益,这强烈表明我们的新任务和数据将支持未来的重大研究工作。我们的数据和基准可在https://nlp.cs.washington.edu/ambigqa上获得。

英文摘要:

Ambiguity is inherent to open-domain question answering; especially when exploring new topics, it can be difficult to ask questions that have a single, unambiguous answer. In this paper, we introduce AmbigQA, a new open-domain question answering task which involves finding every plausible answer, and then rewriting the question for each one to resolve the ambiguity. To study this task, we construct AmbigNQ, a dataset covering 14,042 questions from NQ-open, an existing open-domain QA benchmark. We find that over half of the questions in NQ-open are ambiguous, with diverse sources of ambiguity such as event and entity references. We also present strong baseline models for AmbigQA which we show benefit from weakly supervised learning that incorporates NQ-open, strongly suggesting our new task and data will support significant future research effort. Our data and baselines are available at https://nlp.cs.washington.edu/ambigqa.

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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