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arXiv 2009.07402cs.CLcs.LG
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基于多跳聚焦推理的复杂问题求解

Asking Complex Questions with Multi-hop Answer-focused Reasoning

NSF Center for Big Learning, University of Florida(佛罗里达大学 NSF 大数据学习中心);Cognization Lab(认知实验室)

Xiyao Ma, Qile Zhu, Yanlin Zhou, Xiaolin Li, Dapeng Wu

摘要:

从自然语言文本中提出问题最近引起了越来越多的关注,并且已经提出了几种方案,通过提出正确的问题词并将相关词从输入复制到问题,具有有希望的结果。然而,大多数最先进的方法集中在询问涉及单跳关系的简单问题。在本文中,我们提出了一个新的任务,称为多跳问题生成,要求复杂的和语义相关的问题,另外发现和建模的多个实体及其语义关系的文件和相应的答案1的集合。为了解决这个问题,我们提出了多跳的答案为中心的推理接地答案为中心的实体图,包括不同粒度级别的语义信息,包括单词级和文档级的语义实体和它们的语义关系。通过对HOTPOTQA数据集的广泛实验,我们证明了我们提出的模型的优越性和有效性,作为激励未来工作的基线。

英文摘要:

Asking questions from natural language text has attracted increasing attention recently, and several schemes have been proposed with promising results by asking the right question words and copy relevant words from the input to the question. However, most state-of-the-art methods focus on asking simple questions involving single-hop relations. In this paper, we propose a new task called multihop question generation that asks complex and semantically relevant questions by additionally discovering and modeling the multiple entities and their semantic relations given a collection of documents and the corresponding answer 1. To solve the problem, we propose multi-hop answer-focused reasoning on the grounded answer-centric entity graph to include different granularity levels of semantic information including the word-level and document-level semantics of the entities and their semantic relations. Through extensive experiments on the HOTPOTQA dataset, we demonstrate the superiority and effectiveness of our proposed model that serves as a baseline to motivate future work.

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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