Ontology-driven weak supervision for clinical entity classification in electronic health records

• URL: http://arxiv.org/abs/2008.01972v2
• Date: Tue, 6 Apr 2021 04:11:52 GMT
• Title: Ontology-driven weak supervision for clinical entity classification in electronic health records
• Authors: Jason A. Fries, Ethan Steinberg, Saelig Khattar, Scott L. Fleming, Jose Posada, Alison Callahan, Nigam H. Shah
• Abstract summary: We present Trove, a framework for weakly supervised entity classification using medical and expert-generated rules. Our approach, unlike hand-labeled notes, is easy to share and modify, while offering performance comparable to manually labeled training data.
• Score: 6.815543071244677
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: In the electronic health record, using clinical notes to identify entities such as disorders and their temporality (e.g. the order of an event relative to a time index) can inform many important analyses. However, creating training data for clinical entity tasks is time consuming and sharing labeled data is challenging due to privacy concerns. The information needs of the COVID-19 pandemic highlight the need for agile methods of training machine learning models for clinical notes. We present Trove, a framework for weakly supervised entity classification using medical ontologies and expert-generated rules. Our approach, unlike hand-labeled notes, is easy to share and modify, while offering performance comparable to learning from manually labeled training data. In this work, we validate our framework on six benchmark tasks and demonstrate Trove's ability to analyze the records of patients visiting the emergency department at Stanford Health Care for COVID-19 presenting symptoms and risk factors.

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