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arXiv 2101.11272cs.CLcs.CV
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VisualMRC:文档图像的机器阅读理解

VisualMRC: Machine Reading Comprehension on Document Images

NTT Media Intelligence Laboratories, NTT Corporation(NTT媒体智能实验室,NTT公司)

Ryota Tanaka, Kyosuke Nishida, Sen Yoshida

摘要:

最近关于机器阅读理解的研究主要集中在文本层面的理解,但尚未达到人类对现实世界文档的视觉布局和内容的理解水平。在这项研究中,我们引入了一个新的视觉机器阅读理解数据集,命名为VisualMRC,其中给定一个问题和一个文档图像,机器阅读和翻译图像中的文本,以回答自然语言的问题。与现有的包含图像中文本的视觉问答(VQA)数据集相比,VisualMRC更注重开发自然语言理解和生成能力。它包含30,000+对问题和10,000+文档图像的抽象答案,这些图像来自多个网页域。我们还引入了一个新的模型,该模型扩展了现有的序列到序列模型,使用大规模文本语料库进行预训练,以考虑文档的视觉布局和内容。VisualMRC的实验表明,该模型优于基本序列到序列模型和最先进的VQA模型。然而,在大多数自动评估指标上,它的性能仍然低于人类。该数据集将促进旨在连接视觉和语言理解的研究。

英文摘要:

Recent studies on machine reading comprehension have focused on text-level understanding but have not yet reached the level of human understanding of the visual layout and content of real-world documents. In this study, we introduce a new visual machine reading comprehension dataset, named VisualMRC, wherein given a question and a document image, a machine reads and comprehends texts in the image to answer the question in natural language. Compared with existing visual question answering (VQA) datasets that contain texts in images, VisualMRC focuses more on developing natural language understanding and generation abilities. It contains 30,000+ pairs of a question and an abstractive answer for 10,000+ document images sourced from multiple domains of webpages. We also introduce a new model that extends existing sequence-to-sequence models, pre-trained with large-scale text corpora, to take into account the visual layout and content of documents. Experiments with VisualMRC show that this model outperformed the base sequence-to-sequence models and a state-of-the-art VQA model. However, its performance is still below that of humans on most automatic evaluation metrics. The dataset will facilitate research aimed at connecting vision and language understanding.

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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