Evidence map›Paper›PMID 31265066›Full record

ArticleJournal of the American Medical Informatics Association : JAMIA2019

Enhancing clinical concept extraction with contextual embeddings.

Yuqi Si, Jingqi Wang, Hua Xu, Kirk Roberts

Abstract read
In one paragraph

Article in Journal of the American Medical Informatics Association : JAMIA, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 95 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
95citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

95 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  5. Life events extraction from healthcare notes for veteran acute suicide risk prediction.Journal of the American Medical Informatics Association : JAMIA · 2026
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  9. Information extraction from clinical notes: are we ready to switch to large language models?Journal of the American Medical Informatics Association : JAMIA · 2026
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  18. Utility of word embeddings from large language models in medical diagnosis.Journal of the American Medical Informatics Association : JAMIA · 2025
    Article
  19. Article
  20. Enhancing Cross-Domain Generalizability in Social Determinants of Health Extraction with Prompt-Tuning Large Language Models.AMIA Joint Summits on Translational Science proceedings. AMIA Joint Summits on Translational Science · 2025
    Article

35 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Yuqi SiSchool of Biomedical Informatics, University of Texas Health Science Center at Houston, Houston, Texas, USA.
Jingqi WangSchool of Biomedical Informatics, University of Texas Health Science Center at Houston, Houston, Texas, USA.
Hua XuSchool of Biomedical Informatics, University of Texas Health Science Center at Houston, Houston, Texas, USA.
Kirk RobertsSchool of Biomedical Informatics, University of Texas Health Science Center at Houston, Houston, Texas, USA.

Funding

Advancing Cancer Pharmacoepidemiology Research Through EHRs and InformaticsU24CA194215 · NCI · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI TAO, CUI, YANG, PING · 2016 to 2020
$3.3M
Real-time Disambiguation of Abbreviations in Clinical NotesR01LM010681 · NLM · VANDERBILT UNIVERSITY · PI XU, HUA · 2010 to 2017
$3.1M
Natural Language Question Understanding for Electronic Health RecordsR00LM012104 · NLM · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI ROBERTS, KIRK EDWARD · 2016 to 2018
$747k
NCI NIH HHS U24 CA194215NLM NIH HHS R00 LM012104NLM NIH HHS R01 LM010681
6 · The paper itself

Abstract

objectiveNeural network-based representations ("embeddings") have dramatically advanced natural language processing (NLP) tasks, including clinical NLP tasks such as concept extraction. Recently, however, more advanced embedding methods and representations (eg, ELMo, BERT) have further pushed the state of the art in NLP, yet there are no common best practices for how to integrate these representations into clinical tasks. The purpose of this study, then, is to explore the space of possible options in utilizing these new models for clinical concept extraction, including comparing these to traditional word embedding methods (word2vec, GloVe, fastText). MATERIALS AND

methodsBoth off-the-shelf, open-domain embeddings and pretrained clinical embeddings from MIMIC-III (Medical Information Mart for Intensive Care III) are evaluated. We explore a battery of embedding methods consisting of traditional word embeddings and contextual embeddings and compare these on 4 concept extraction corpora: i2b2 2010, i2b2 2012, SemEval 2014, and SemEval 2015. We also analyze the impact of the pretraining time of a large language model like ELMo or BERT on the extraction performance. Last, we present an intuitive way to understand the semantic information encoded by contextual embeddings.

resultsContextual embeddings pretrained on a large clinical corpus achieves new state-of-the-art performances across all concept extraction tasks. The best-performing model outperforms all state-of-the-art methods with respective F1-measures of 90.25, 93.18 (partial), 80.74, and 81.65.

conclusionsWe demonstrate the potential of contextual embeddings through the state-of-the-art performance these methods achieve on clinical concept extraction. Additionally, we demonstrate that contextual embeddings encode valuable semantic information not accounted for in traditional word representations.

Indexed as

Natural Language ProcessingNeural Networks, ComputerBig DataDatabases, FactualHumansInformation Storage and RetrievalPublic Reporting of Healthcare Dataclinical concept extractioncontextual embeddingslanguage model

Identifiers

PMID31265066
PMCPMC6798561

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.