Sherry Yan


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2019

pdf bib
Clinical Concept Extraction for Document-Level Coding
Sarah Wiegreffe | Edward Choi | Sherry Yan | Jimeng Sun | Jacob Eisenstein
Proceedings of the 18th BioNLP Workshop and Shared Task

The text of clinical notes can be a valuable source of patient information and clinical assessments. Historically, the primary approach for exploiting clinical notes has been information extraction: linking spans of text to concepts in a detailed domain ontology. However, recent work has demonstrated the potential of supervised machine learning to extract document-level codes directly from the raw text of clinical notes. We propose to bridge the gap between the two approaches with two novel syntheses: (1) treating extracted concepts as features, which are used to supplement or replace the text of the note; (2) treating extracted concepts as labels, which are used to learn a better representation of the text. Unfortunately, the resulting concepts do not yield performance gains on the document-level clinical coding task. We explore possible explanations and future research directions.