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Towards Human-Like Machine Comprehension: Few-Shot Relational Learning in Visually-Rich Documents

arXiv (Cornell University)(2024)

Shanghai University School of Computer Engineering and Science | Kyoto University Graduate School of Informatics | Shanghai Jiao Tong University Department of Computer Science and Engineering

Cited 0|Views47
Abstract
Key-value relations are prevalent in Visually-Rich Documents (VRDs), oftendepicted in distinct spatial regions accompanied by specific color and fontstyles. These non-textual cues serve as important indicators that greatlyenhance human comprehension and acquisition of such relation triplets. However,current document AI approaches often fail to consider this valuable priorinformation related to visual and spatial features, resulting in suboptimalperformance, particularly when dealing with limited examples. To address thislimitation, our research focuses on few-shot relational learning, specificallytargeting the extraction of key-value relation triplets in VRDs. Given theabsence of a suitable dataset for this task, we introduce two new few-shotbenchmarks built upon existing supervised benchmark datasets. Furthermore, wepropose a variational approach that incorporates relational 2D-spatial priorsand prototypical rectification techniques. This approach aims to generaterelation representations that are more aware of the spatial context and unseenrelation in a manner similar to human perception. Experimental resultsdemonstrate the effectiveness of our proposed method by showcasing its abilityto outperform existing methods. This study also opens up new possibilities forpractical applications.
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Information Retrieval,Word Representation,Machine Translation,Topic Modeling,Named Entity Recognition
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要点】:本研究致力于在视觉丰富的文件中进行少样本关系学习,提出了基于关键-值关系三元组的可变学习方法,在关系表示上更加关注空间上下文并且超越了现有方法的性能。

方法】:引入两个新的少样本基准测试,并提出了一种结合了关系二维空间先验和原型校正技术的可变方法。

实验】:通过实验结果证明了所提出的方法的有效性,并展示了其超越现有方法的能力,同时为实际应用开辟了新的可能性。