arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1902.09093cs.CLcs.AI
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多关系问答:模拟世界中的机器阅读和推理

Multi-Relational Question Answering from Narratives: Machine Reading and Reasoning in Simulated Worlds

Carnegie Mellon University(卡内基梅隆大学);Ariel University(阿里尔大学)

Igor Labutov, Bishan Yang, Anusha Prakash, Amos Azaria

摘要:

问答(QA)作为一个研究领域,主要集中在知识库(KB)或自由文本作为知识的来源。这两个来源在历史上塑造了对这些来源提出的问题,以及回答这些问题的方法。在这项工作中,我们期待着一个实际的使用情况下,QA用户指导的知识,独特地结合了两个结构化的QA知识库的元素,和非结构化的QA叙事,介绍了多关系QA的任务,个人叙事。作为实现这一目标的第一步,我们做出了三项关键贡献:(i)我们生成并发布了TextWorldsQA,这是一组五个不同的数据集,其中每个数据集都包含描述模拟世界中的实体和关系的动态叙述,并结合了关于该知识的复杂组成问题,(ii)我们在这项任务中对几个最先进的QA模型及其变体进行了全面的评估和分析,(iii)我们发布了一个轻量级的基于Python的框架,我们称之为TextWorlds,用于轻松生成任意的附加世界和叙事,目标是允许社区创建和共享不断增长的不同世界集合,作为这项任务的测试平台。

英文摘要:

Question Answering (QA), as a research field, has primarily focused on either knowledge bases (KBs) or free text as a source of knowledge. These two sources have historically shaped the kinds of questions that are asked over these sources, and the methods developed to answer them. In this work, we look towards a practical use-case of QA over user-instructed knowledge that uniquely combines elements of both structured QA over knowledge bases, and unstructured QA over narrative, introducing the task of multi-relational QA over personal narrative. As a first step towards this goal, we make three key contributions: (i) we generate and release TextWorldsQA, a set of five diverse datasets, where each dataset contains dynamic narrative that describes entities and relations in a simulated world, paired with variably compositional questions over that knowledge, (ii) we perform a thorough evaluation and analysis of several state-of-the-art QA models and their variants at this task, and (iii) we release a lightweight Python-based framework we call TextWorlds for easily generating arbitrary additional worlds and narrative, with the goal of allowing the community to create and share a growing collection of diverse worlds as a test-bed for this task.

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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