Anomaly Detection Techniques and Applications
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Abstract
Abstract
We develop and evaluate a data-driven approach for detecting unusual (anomalous) patient-management actions using past patient cases stored in an electronic health record (EHR) system. Our hypothesis is that patient-management actions that are unusual with respect to past patients may be due to a potential error and that it is worthwhile to raise an alert if such a condition is encountered. We evaluate this hypothesis using data obtained from the electronic health records of 4,486 post-cardiac surgical patients. We base the evaluation on the opinions of a panel of experts. The results support that anomaly-based alerting can have reasonably low false alert rates and that stronger anomalies are correlated with higher alert rates.
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@article{Hauskrecht2026Conditional,
title = {Conditional outlier detection for clinical alerting},
author = {Miloš Hauskrecht and Michal Vaľko and Iyad Batal and Gilles Clermont and Shyam Visweswaran and Gregory F. Cooper},
journal = {PubMed},
year = {2026},
doi = {10.48550/arxiv.2605.05124},
url = {https://pubmed.ncbi.nlm.nih.gov/21346986}
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