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Discourse Tagging for Scientific Evidence Extraction

Xiangci Li, Gully Burns, and Nanyun Peng, in The 16th Conference of the European Chapter of the Association for Computational Linguistics (EACL), 2021.

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Abstract

Evidence plays a crucial role in any biomedical research narrative, providing justification for some claims and refutation for others. We seek to build models of scientific argument using information extraction methods from fulltext papers. We present the capability of automatically extracting text fragments from primary research papers that describe the evidence presented in that paper’s figures, which arguably provides the raw material of any scientific argument made within the paper. We apply richly contextualized deep representation learning pre-trained on biomedical domain corpus to the analysis of scientific discourse structures and the extraction of "evidence fragments" (i.e., the text in the results section describing data presented in a specified subfigure) from a set of biomedical experimental research articles. We first demonstrate our state-of-the-art scientific discourse tagger on two scientific discourse tagging datasets and its transferability to new datasets. We then show the benefit of leveraging scientific discourse tags for downstream tasks such as claim-extraction and evidence fragment detection. Our work demonstrates the potential of using evidence fragments derived from figure spans for improving the quality of scientific claims by cataloging, indexing and reusing evidence fragments as independent documents.


Bib Entry

@inproceedings{li2021discourse,
  title = {Discourse Tagging for Scientific Evidence Extraction},
  author = {Li, Xiangci and Burns, Gully and Peng, Nanyun},
  booktitle = {The 16th Conference of the European Chapter of the Association for Computational Linguistics (EACL)},
  year = {2021}
}

Related Publications

  • Discourse Tagging for Scientific Evidence Extraction

    Xiangci Li, Gully Burns, and Nanyun Peng, in The 16th Conference of the European Chapter of the Association for Computational Linguistics (EACL), 2021.
    Full Text Abstract BibTeX Details
    Evidence plays a crucial role in any biomedical research narrative, providing justification for some claims and refutation for others. We seek to build models of scientific argument using information extraction methods from fulltext papers. We present the capability of automatically extracting text fragments from primary research papers that describe the evidence presented in that paper’s figures, which arguably provides the raw material of any scientific argument made within the paper. We apply richly contextualized deep representation learning pre-trained on biomedical domain corpus to the analysis of scientific discourse structures and the extraction of "evidence fragments" (i.e., the text in the results section describing data presented in a specified subfigure) from a set of biomedical experimental research articles. We first demonstrate our state-of-the-art scientific discourse tagger on two scientific discourse tagging datasets and its transferability to new datasets. We then show the benefit of leveraging scientific discourse tags for downstream tasks such as claim-extraction and evidence fragment detection. Our work demonstrates the potential of using evidence fragments derived from figure spans for improving the quality of scientific claims by cataloging, indexing and reusing evidence fragments as independent documents.
    @inproceedings{li2021discourse,
      title = {Discourse Tagging for Scientific Evidence Extraction},
      author = {Li, Xiangci and Burns, Gully and Peng, Nanyun},
      booktitle = {The 16th Conference of the European Chapter of the Association for Computational Linguistics (EACL)},
      year = {2021}
    }
    
    Details