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arXiv 2103.05908cs.CLcs.AIcs.LG
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DeepCPCFG:深度学习和上下文无关文法用于端到端信息抽取

DeepCPCFG: Deep Learning and Context Free Grammars for End-to-End Information Extraction

Ernst & Young (EY) AI Lab(安永人工智能实验室)

Freddy C. Chua, Nigel P. Duffy

摘要:

我们解决的挑战,提取结构化的信息,从业务文档中没有详细的注释。我们提出了深度条件概率上下文无关文法(DeepCPCFG)来解析二维复杂文档,并使用递归神经网络来创建一个端到端系统,用于找到最可能的解析,表示要提取的结构化信息。这个系统是端到端训练的,扫描的文档作为输入,只有关系记录作为标签。关系记录是从现有的数据库中提取的,避免了手工注释文档的成本。我们应用这种方法来提取信息,从扫描发票实现国家的最先进的结果,尽管没有使用手工注释。

英文摘要:

We address the challenge of extracting structured information from business documents without detailed annotations. We propose Deep Conditional Probabilistic Context Free Grammars (DeepCPCFG) to parse two-dimensional complex documents and use Recursive Neural Networks to create an end-to-end system for finding the most probable parse that represents the structured information to be extracted. This system is trained end-to-end with scanned documents as input and only relational-records as labels. The relational-records are extracted from existing databases avoiding the cost of annotating documents by hand. We apply this approach to extract information from scanned invoices achieving state-of-the-art results despite using no hand-annotations.

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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