GraphIE: A Graph-Based Framework for Information Extraction

Yujie Qian, Enrico Santus, Zhijing Jin, Jiang Guo, Regina Barzilay

Nov 17, 2018 AKBC 2019 Conference Blind Submission readers: everyone
  • Keywords: information extraction, graph convolutional network
  • Abstract: Most modern Information Extraction (IE) systems are implemented as sequential taggers and only model local dependencies. Non-local and non-sequential context is, however, a valuable source of information to improve predictions. In this paper, we introduce GraphIE, a framework that operates over a graph representing a broad set of dependencies between textual units (i.e. words or sentences). The algorithm propagates information between connected nodes through graph convolutions, generating a richer representation that can be exploited to improve word-level predictions. Evaluation on three different tasks -- namely social media, textual and visual information extraction -- shows that GraphIE consistently outperforms the state-of-the-art sequence tagging model by a significant margin.
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