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Related Experiment Video

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Using Eye Movements Recorded in the Visual World Paradigm to Explore the Online Processing of Spoken Language

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Published on: October 13, 2018

Syntactical negation detection in clinical practice guidelines.

Stefan Gindl¹, Katharina Kaiser, Silvia Miksch

¹Institute of Software Technology and Interactive Systems, Vienna University of Technology, Vienna, Austria. stefan.gindl@gmx.at

Studies in Health Technology and Informatics

|May 20, 2008

Summary

Detecting negation in clinical practice guidelines (CPGs) is crucial. Our developed algorithms, utilizing syntactical methods, significantly improve negation detection in medical texts.

Related Experiment Videos

Last Updated: Jul 5, 2026

Using Eye Movements Recorded in the Visual World Paradigm to Explore the Online Processing of Spoken Language

Using Eye Movements Recorded in the Visual World Paradigm to Explore the Online Processing of Spoken Language

Published on: October 13, 2018

Area of Science:

Medical Informatics
Natural Language Processing

Background:

Clinical practice guidelines (CPGs) contain vital medical information presented in narrative text.
A significant portion of information within CPGs is expressed in a negated form, indicating absence or contraindication.

Purpose of the Study:

To develop and evaluate algorithms for effective negation detection in clinical practice guidelines.
To highlight the importance of identifying negated information for clinical decision-making.

Main Methods:

Development of specialized algorithms for Negation Detection.
Application of syntactical methods to analyze medical documents.

Main Results:

The developed algorithms demonstrate capability in detecting negation within CPGs.
Syntactical methods were found to enhance the accuracy of negation detection.

Conclusions:

Negation Detection in CPGs is an important task for identifying non-occurring conditions and contraindicated treatments.
Syntactical approaches offer a promising method for improving negation detection in both medical and general narrative texts.