Hongfang Liu

The 2019 n2c2/OHNLP Track on Clinical Semantic Textual Similarity: Overview

2020 · JMIR Medical Informatics

BACKGROUND: Semantic textual similarity is a common task in the general English domain to assess the degree to which the underlying semantics of 2 text segments are equivalent to each other. Clinical Semantic Textual Similarity …

Natural Language Processing and Machine Learning for Identifying Incident Stroke From Electronic Health Records: Algorithm Development and Validation (Preprint)

2020

<sec> <title>BACKGROUND</title> Stroke is an important clinical outcome in cardiovascular research. However, the ascertainment of incident stroke is typically accomplished via time-consuming manual chart abstraction. Current phenotyping efforts using electronic health records for stroke focus …

CLAMP – a toolkit for efficiently building customized clinical natural language processing pipelines

2017 · Journal of the American Medical Informatics Association

Existing general clinical natural language processing (NLP) systems such as MetaMap and Clinical Text Analysis and Knowledge Extraction System have been successfully applied to information extraction from clinical text. However, end users often have to …