Developing a section labeler for clinical documents.
AMIA Annu Symp Proc
; 2014: 636-44, 2014.
Article
em En
| MEDLINE
| ID: mdl-25954369
ABSTRACT
Natural language processing (NLP) technologies provide an opportunity to extract key patient data from free text documents within the electronic health record (EHR). We are developing a series of components from which to construct NLP pipelines. These pipelines typically begin with a component whose goal is to label sections within medical documents with codes indicating the anticipated semantics of their content. This Clinical Section Labeler prepares the document for further, focused information extraction. Below we describe the evaluation of six algorithms designed for use in a Clinical Section Labeler. These algorithms are trained with N-gram-based feature sets extracted from document sections and the document types. In the evaluation, 6 different Bayesian models were trained and used to assign one of 27 different topics to each section. A tree-augmented Bayesian network using the document type and N-grams derived from section headers proved most accurate in assigning individual sections appropriate section topics.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Algoritmos
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Processamento de Linguagem Natural
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Registros Eletrônicos de Saúde
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article