Feature engineering combined with machine learning and rule-based methods for structured information extraction from narrative clinical discharge summaries

Xu, Yan; Hong, Kai; Tsujii, Jun’ichi; Chang, Eric

doi:10.1136/amiajnl-2011-000776

Public

Feature engineering combined with machine learning and rule-based methods for structured information extraction from narrative clinical discharge summaries

Published in Journal of the American Medical Informatics Association • May 15, 2012

Authors:

Yan Xu

Kai Hong

Jun’ichi Tsujii

Abstract

OBJECTIVE: A system that translates narrative text in the medical domain into structured representation is in great demand. The system performs three sub-tasks: concept extraction, assertion classification, and relation identification. DESIGN: The overall system consists of five steps: (1) pre-proce...

Subject

Computer science

Assertion

Narrative

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