AIMC Journal:
Journal of the American Medical Informatics Association : JAMIA

Showing 471 to 480 of 493 articles

Expanding a radiology lexicon using contextual patterns in radiology reports.

Journal of the American Medical Informatics Association : JAMIA Jun 1, 2018
OBJECTIVE: Distributional semantics algorithms, which learn vector space representations of words and phrases from large corpora, identify related terms based on contextual usage patterns. We hypothesize that distributional semantics can speed up lex...
Algorithms Databases, Factual Electronic Health Records Humans Software Semantics Radiology Information Systems Vocabulary, Controlled Natural Language Processing Radiology Data Mining
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SemEHR: A general-purpose semantic search system to surface semantic data from clinical notes for tailored care, trial recruitment, and clinical research.

Journal of the American Medical Informatics Association : JAMIA May 1, 2018
OBJECTIVE: Unlocking the data contained within both structured and unstructured components of electronic health records (EHRs) has the potential to provide a step change in data available for secondary research use, generation of actionable medical i...
Natural Language Processing Patient Selection United Kingdom Humans Electronic Health Records Clinical Trials as Topic Information Storage and Retrieval Semantics State Medicine
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Using machine learning for sequence-level automated MRI protocol selection in neuroradiology.

Journal of the American Medical Informatics Association : JAMIA May 1, 2018
Incorrect imaging protocol selection can lead to important clinical findings being missed, contributing to both wasted health care resources and patient harm. We present a machine learning method for analyzing the unstructured text of clinical indica...
Humans Machine Learning Neuroradiography Sensitivity and Specificity Support Vector Machine Decision Support Systems, Clinical Magnetic Resonance Imaging Datasets as Topic
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Characteristics of knowledge content in a curated online evidence library.

Journal of the American Medical Informatics Association : JAMIA May 1, 2018
OBJECTIVE: To describe types of recommendations represented in a curated online evidence library, report on the quality of evidence-based recommendations pertaining to diagnostic imaging exams, and assess underlying knowledge representation.
Evidence-Based Practice Humans Decision Support Systems, Clinical Diagnostic Imaging Knowledge Bases Practice Guidelines as Topic
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Segment convolutional neural networks (Seg-CNNs) for classifying relations in clinical notes.

Journal of the American Medical Informatics Association : JAMIA Jan 1, 2018
We propose Segment Convolutional Neural Networks (Seg-CNNs) for classifying relations from clinical notes. Seg-CNNs use only word-embedding features without manual feature engineering. Unlike typical CNN models, relations between 2 concepts are ident...
Neural Networks, Computer Humans Natural Language Processing Machine Learning Electronic Health Records Datasets as Topic
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NLPReViz: an interactive tool for natural language processing on clinical text.

Journal of the American Medical Informatics Association : JAMIA Jan 1, 2018
The gap between domain experts and natural language processing expertise is a barrier to extracting understanding from clinical text. We describe a prototype tool for interactive review and revision of natural language processing models of binary con...
Humans Machine Learning Software Physicians User-Computer Interface Natural Language Processing Information Storage and Retrieval Electronic Health Records Colonoscopy Attitude of Health Personnel
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Graph-based semi-supervised learning with genomic data integration using condition-responsive genes applied to phenotype classification.

Journal of the American Medical Informatics Association : JAMIA Jan 1, 2018
OBJECTIVE: Data integration methods that combine data from different molecular levels such as genome, epigenome, transcriptome, etc., have received a great deal of interest in the past few years. It has been demonstrated that the synergistic effects ...
Metabolic Networks and Pathways Gene Expression Supervised Machine Learning DNA Methylation Ovarian Neoplasms Humans Algorithms Phenotype Female Genomics Computational Biology
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Mining e-cigarette adverse events in social media using Bi-LSTM recurrent neural network with word embedding representation.

Journal of the American Medical Informatics Association : JAMIA Jan 1, 2018
OBJECTIVE: Recent years have seen increased worldwide popularity of e-cigarette use. However, the risks of e-cigarettes are underexamined. Most e-cigarette adverse event studies have achieved low detection rates due to limited subject sample sizes in...
Electronic Nicotine Delivery Systems Humans Neural Networks, Computer Social Media Data Mining Semantics Vaping
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Identifying reports of randomized controlled trials (RCTs) via a hybrid machine learning and crowdsourcing approach.

Journal of the American Medical Informatics Association : JAMIA Nov 1, 2017
OBJECTIVES: Identifying all published reports of randomized controlled trials (RCTs) is an important aim, but it requires extensive manual effort to separate RCTs from non-RCTs, even using current machine learning (ML) approaches. We aimed to make th...
Natural Language Processing ROC Curve Crowdsourcing Review Literature as Topic Machine Learning Databases, Bibliographic Support Vector Machine Information Storage and Retrieval Biomedical Research Randomized Controlled Trials as Topic
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Calibration drift in regression and machine learning models for acute kidney injury.

Journal of the American Medical Informatics Association : JAMIA Nov 1, 2017
OBJECTIVE: Predictive analytics create opportunities to incorporate personalized risk estimates into clinical decision support. Models must be well calibrated to support decision-making, yet calibration deteriorates over time. This study explored the...
Hospitals, Veterans Acute Kidney Injury Logistic Models Clinical Decision-Making Humans United States Female Aged Bayes Theorem Machine Learning Male Decision Support Techniques Middle Aged
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