Discovering narrative containers in clinical text

Timothy A. Miller, Steven Bethard, Dmitriy Dligach, Sameer Pradhan, Chen Lin, Guergana K. Savova

Research output: Chapter in Book/Report/Conference proceedingConference contribution

15 Scopus citations

Abstract

The clinical narrative contains a great deal of valuable information that is only understandable in a temporal context. Events, time expressions, and temporal relations convey information about the time course of a patient's clinical record that must be understood for many applications of interest. In this paper, we focus on extracting information about how time expressions and events are related by narrative containers. We use support vector machines with composite kernels, which allows for integrating standard feature kernels with tree kernels for representing structured features such as constituency trees. Our experiments show that using tree kernels in addition to standard feature kernels improves F1 classification for this task.

Original languageEnglish (US)
Title of host publicationBioNLP 2013 - 2013 Workshop on Biomedical Natural Language Processing at the 51st Annual Meeting of the Association for Computational Linguistics, ACL 2013, Proceedings of the Workshop
EditorsKevin Bretonnel Cohen, Dina Demner-Fushman, Sophia Ananiadou, John Pestian, Jun'ichi Tsujii
PublisherAssociation for Computational Linguistics (ACL)
Pages18-26
Number of pages9
ISBN (Electronic)9781937284541
StatePublished - 2013
Externally publishedYes
Event2013 Workshop on Biomedical Natural Language Processing, BioNLP 2013 at the 51st Annual Meeting of the Association for Computational Linguistics, ACL 2013 - Sofia, Bulgaria
Duration: Aug 8 2013 → …

Publication series

NameProceedings of the Annual Meeting of the Association for Computational Linguistics
ISSN (Print)0736-587X

Conference

Conference2013 Workshop on Biomedical Natural Language Processing, BioNLP 2013 at the 51st Annual Meeting of the Association for Computational Linguistics, ACL 2013
Country/TerritoryBulgaria
CitySofia
Period8/8/13 → …

ASJC Scopus subject areas

  • Computer Science Applications
  • Linguistics and Language
  • Language and Linguistics

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