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Expanding a Dictionary of Marker Words for Uncertainty and Negation Using Distributional Semantics

Alfalahi, Alyaa; Ahlblom, Rickard; Skeppstedt, Maira; Baskalayci, Roza; Henriksson, Aron; Asker, Lars; Paradis, Carita LU and Kerren, Andreas (2015) 6th International Workshop on Health Text Mining and Information Analysis (Louhi '15), Lisbon, Portugal, 2015 Proceedings of the 6th International Workshop on Health Text Mining and Information Analysis (Louhi '15): Short Paper Track, Association for Computational Linguistics, 2015 In [Host publication title missing] p.90-96
Abstract
Approaches to determining the factuality of diagnoses and findings in clinical text tend to rely on dictionaries of marker words for uncertainty and negation. Here, a method for semi-automatically expanding a dictionary of marker words using distributional semantics is presented and evaluated. It is shown that ranking candidates for inclusion according to their proximity to cluster centroids of semantically similar seed words is more successful than ranking them according to proximity to each individual seed word.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
clinical text, negation, uncertainty, marker words, distributional semantics
in
[Host publication title missing]
editor
Grouin, Cyril; Hamon, Thierry; Névéol, Aurélie and Zweigenbaum, Pierre
pages
6 pages
conference name
6th International Workshop on Health Text Mining and Information Analysis (Louhi '15), Lisbon, Portugal, 2015 Proceedings of the 6th International Workshop on Health Text Mining and Information Analysis (Louhi '15): Short Paper Track, Association for Computational Linguistics, 2015
external identifiers
  • Other:urn:nbn:se:lnu:diva-45648
  • Other:oai:DiVA.org:lnu-45648
ISBN
978-1-941643-32-7
project
StaViCTA - Advances in the description and explanation of stance in discourse using visual and computational text analytics
language
English
LU publication?
yes
id
ca58d1c4-4bfa-4f8a-9c4f-9e8291f1ce59 (old id 7763505)
date added to LUP
2015-08-26 14:00:42
date last changed
2016-04-26 16:05:35
@misc{ca58d1c4-4bfa-4f8a-9c4f-9e8291f1ce59,
  abstract     = {Approaches to determining the factuality of diagnoses and findings in clinical text tend to rely on dictionaries of marker words for uncertainty and negation. Here, a method for semi-automatically expanding a dictionary of marker words using distributional semantics is presented and evaluated. It is shown that ranking candidates for inclusion according to their proximity to cluster centroids of semantically similar seed words is more successful than ranking them according to proximity to each individual seed word.},
  author       = {Alfalahi, Alyaa and Ahlblom, Rickard and Skeppstedt, Maira and Baskalayci, Roza and Henriksson, Aron and Asker, Lars and Paradis, Carita and Kerren, Andreas},
  editor       = {Grouin, Cyril and Hamon, Thierry and Névéol, Aurélie and Zweigenbaum, Pierre},
  isbn         = {978-1-941643-32-7},
  keyword      = {clinical text,negation,uncertainty,marker words,distributional semantics},
  language     = {eng},
  pages        = {90--96},
  series       = {[Host publication title missing]},
  title        = {Expanding a Dictionary of Marker Words for Uncertainty and Negation Using Distributional Semantics},
  year         = {2015},
}