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2010 i2b2/VA challenge on concepts, assertions, and relations in clinical text

Open access
Uzuner, Özlem, South, Brett R, Shen, Shuying, DuVall, Scott L·2011·Journal of the American Medical Informatics Association

Abstract

The 2010 i2b2/VA Workshop on Natural Language Processing Challenges for Clinical Records presented three tasks: a concept extraction task focused on the extraction of medical concepts from patient reports; an assertion classification task focused on assigning assertion types for medical problem concepts; and a relation classification task focused on assigning relation types that hold between medical problems, tests, and treatments. i2b2 and the VA provided an annotated reference standard corpus for the three tasks. Using this reference standard, 22 systems were developed for concept extraction, 21 for assertion classification, and 16 for relation classification. These systems showed that machine learning approaches could be augmented with rule-based systems to determine concepts, assertions, and relations. Depending on the task, the rule-based systems can either provide input for machine learning or post-process the output of machine learning. Ensembles of classifiers, information from unlabeled data, and external knowledge sources can help when the training data are inadequate.

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Metadata

Authors
Uzuner, Ö., South, B. R., Shen, S., & DuVall, S. L.
Venue
Journal of the American Medical Informatics Association
Published
2011-06-16
Volume
18
Issue
5
Pages
552-556
ISSN
  • 1067-5027 (ISSN-L)
  • 1527-974X
OpenAlex
W2168041406
Cited by
1,252
References
1
FWCI
24.92
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: 2010 i2b2/VA challenge on concepts, assertions, and relations in clinical text. https://app.cochat.ai/papers/10.1136/amiajnl-2011-000203
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Uzuner, Ö., South, B. R., Shen, S., & DuVall, S. L. (2011). 2010 i2b2/VA challenge on concepts, assertions, and relations in clinical text. Journal of the American Medical Informatics Association. https://doi.org/10.1136/amiajnl-2011-000203

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