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arXiv 2109.04546cs.CL
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基于数学一致性和问题上下文约束的数学应用题生成

Math Word Problem Generation with Mathematical Consistency and Problem Context Constraints

Rice University(莱斯大学);University of Massachusetts Amherst(马萨诸塞大学阿默斯特分校);OpenStax

Zichao Wang, Andrew S. Lan, Richard G. Baraniuk

摘要:

我们研究了生成算术数学应用题(MWPs)的问题,给出了指定数学计算的数学方程和指定问题场景的上下文。现有的方法容易产生数学上无效或语言质量不令人满意的MWP。他们也忽略了上下文或需要手动规范的问题模板,这损害了所生成的MWP的多样性。在本文中,我们开发了一种新的MWP生成方法,利用i)预训练的语言模型和上下文关键字选择模型,以提高生成的MWP的语言质量和ii)数学方程的方程一致性约束,以提高生成的MWP的数学有效性。在三个真实世界的MWP数据集上进行的大量定量和定性实验表明,与各种基线相比,我们的方法具有优异的性能。

英文摘要:

We study the problem of generating arithmetic math word problems (MWPs) given a math equation that specifies the mathematical computation and a context that specifies the problem scenario. Existing approaches are prone to generating MWPs that are either mathematically invalid or have unsatisfactory language quality. They also either ignore the context or require manual specification of a problem template, which compromises the diversity of the generated MWPs. In this paper, we develop a novel MWP generation approach that leverages i) pre-trained language models and a context keyword selection model to improve the language quality of the generated MWPs and ii) an equation consistency constraint for math equations to improve the mathematical validity of the generated MWPs. Extensive quantitative and qualitative experiments on three real-world MWP datasets demonstrate the superior performance of our approach compared to various baselines.

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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