Stabilizing high-dimensional prediction models using feature graphs
Data(s) |
01/05/2015
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Resumo |
We investigate feature stability in the context of clinical prognosis derived from high-dimensional electronic medical records. To reduce variance in the selected features that are predictive, we introduce Laplacian-based regularization into a regression model. The Laplacian is derived on a feature graph that captures both the temporal and hierarchic relations between hospital events, diseases, and interventions. Using a cohort of patients with heart failure, we demonstrate better feature stability and goodness-of-fit through feature graph stabilization. |
Identificador | |
Idioma(s) |
eng |
Publicador |
IEEE |
Relação |
http://dro.deakin.edu.au/eserv/DU:30076886/evid-predictingpeerrvwspcfc-2015.pdf http://dro.deakin.edu.au/eserv/DU:30076886/gopakumar-stabilizinghigh-2015.pdf http://www.dx.doi.org/10.1109/JBHI.2014.2353031 http://www.ncbi.nlm.nih.gov/pubmed/25181501 |
Direitos |
2015, IEEE |
Palavras-Chave | #Aged #Electric Health Records #Female #Heart Failure #Humans #Male #Models, Biological #Models, Statistical #Reproductility of Results #Risk Factors |
Tipo |
Journal Article |