AIMC Journal:
Journal of biomedical informatics

Showing 581 to 590 of 657 articles

Hidden Markov model using Dirichlet process for de-identification.

Journal of biomedical informatics Sep 25, 2015
For the 2014 i2b2/UTHealth de-identification challenge, we introduced a new non-parametric Bayesian hidden Markov model using a Dirichlet process (HMM-DP). The model intends to reduce task-specific feature engineering and to generalize well to new da...
Machine Learning Computer Security Natural Language Processing Computer Simulation Vocabulary, Controlled Electronic Health Records Confidentiality Newfoundland and Labrador Data Mining Cohort Studies Markov Chains Models, Statistical Pattern Recognition, Automated Narration
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Comparison of machine learning classifiers for influenza detection from emergency department free-text reports.

Journal of biomedical informatics Sep 16, 2015
Influenza is a yearly recurrent disease that has the potential to become a pandemic. An effective biosurveillance system is required for early detection of the disease. In our previous studies, we have shown that electronic Emergency Department (ED) ...
Influenza, Human Humans Machine Learning Emergency Service, Hospital
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A study of active learning methods for named entity recognition in clinical text.

Journal of biomedical informatics Sep 15, 2015
OBJECTIVES: Named entity recognition (NER), a sequential labeling task, is one of the fundamental tasks for building clinical natural language processing (NLP) systems. Machine learning (ML) based approaches can achieve good performance, but they oft...
Humans Machine Learning Learning Natural Language Processing
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Textual inference for eligibility criteria resolution in clinical trials.

Journal of biomedical informatics Sep 14, 2015
Clinical trials are essential for determining whether new interventions are effective. In order to determine the eligibility of patients to enroll into these trials, clinical trial coordinators often perform a manual review of clinical notes in the e...
Eligibility Determination Patient Selection Data Mining Pattern Recognition, Automated Humans Clinical Trials as Topic Electronic Health Records Vocabulary, Controlled Natural Language Processing
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Comparison of UMLS terminologies to identify risk of heart disease using clinical notes.

Journal of biomedical informatics Sep 12, 2015
The second track of the 2014 i2b2 challenge asked participants to automatically identify risk factors for heart disease among diabetic patients using natural language processing techniques for clinical notes. This paper describes a rule-based system ...
Natural Language Processing Coronary Artery Disease Confidentiality Data Mining Pattern Recognition, Automated Incidence Cohort Studies Longitudinal Studies Narration Ohio Terminology as Topic Unified Medical Language System Computer Security Vocabulary, Controlled Diabetes Complications Humans Electronic Health Records Female Aged Male Middle Aged Risk Assessment Comorbidity
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A hybrid model for automatic identification of risk factors for heart disease.

Journal of biomedical informatics Sep 12, 2015
Coronary artery disease (CAD) is the leading cause of death in both the UK and worldwide. The detection of related risk factors and tracking their progress over time is of great importance for early prevention and treatment of CAD. This paper describ...
Humans Electronic Health Records Female Aged Pattern Recognition, Automated Male Coronary Artery Disease Incidence Computer Security Cohort Studies Confidentiality Middle Aged Vocabulary, Controlled Longitudinal Studies Data Mining Risk Assessment Narration United Kingdom Comorbidity Natural Language Processing
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An automatic system to identify heart disease risk factors in clinical texts over time.

Journal of biomedical informatics Sep 8, 2015
Despite recent progress in prediction and prevention, heart disease remains a leading cause of death. One preliminary step in heart disease prediction and prevention is risk factor identification. Many studies have been proposed to identify risk fact...
Middle Aged Risk Assessment Comorbidity China Incidence Female Aged Male Cardiovascular Diseases Data Mining Pattern Recognition, Automated Cohort Studies Computer Security Longitudinal Studies Vocabulary, Controlled Humans Narration Diabetes Complications Electronic Health Records Natural Language Processing Confidentiality
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Coronary artery disease risk assessment from unstructured electronic health records using text mining.

Journal of biomedical informatics Aug 28, 2015
Coronary artery disease (CAD) often leads to myocardial infarction, which may be fatal. Risk factors can be used to predict CAD, which may subsequently lead to prevention or early intervention. Patient data such as co-morbidities, medication history,...
Vocabulary, Controlled Diabetes Complications Incidence New South Wales Natural Language Processing Cohort Studies Humans Male Confidentiality Longitudinal Studies Electronic Health Records Data Mining Cardiovascular Diseases Narration Female Pattern Recognition, Automated Middle Aged Aged Computer Security Risk Assessment Comorbidity
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Annotating longitudinal clinical narratives for de-identification: The 2014 i2b2/UTHealth corpus.

Journal of biomedical informatics Aug 28, 2015
The 2014 i2b2/UTHealth natural language processing shared task featured a track focused on the de-identification of longitudinal medical records. For this track, we de-identified a set of 1304 longitudinal medical records describing 296 patients. Thi...
Cohort Studies Electronic Health Records Documentation Narration Pattern Recognition, Automated Natural Language Processing Computer Security Confidentiality Vocabulary, Controlled Data Mining
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Adapting existing natural language processing resources for cardiovascular risk factors identification in clinical notes.

Journal of biomedical informatics Aug 28, 2015
The 2014 i2b2 natural language processing shared task focused on identifying cardiovascular risk factors such as high blood pressure, high cholesterol levels, obesity and smoking status among other factors found in health records of diabetic patients...
Confidentiality Humans Data Mining Electronic Health Records Incidence Computer Security Utah Female Pattern Recognition, Automated Cohort Studies Vocabulary, Controlled Aged Longitudinal Studies Male Diabetes Complications Narration Natural Language Processing Cardiovascular Diseases Middle Aged Risk Assessment Comorbidity
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