Title
Improving Clinical Relevance in Ensemble Support Vector Machine Models of Radiation Pneumonitis Risk
Abstract
Patients undergoing thoracic radiation therapy can develop radiation pneumonitis (RP), a potentially fatal inflammation of the lungs. Support vector machines (SVMs), a statistical machine learning method, have recently been used to build binary-outcome RP prediction models with promising results. In this work, we (1) introduce a feature-ranking selection step to limit complexity in ensemble SVM models (2) show that ensembles of SVMs provide a statistically significant performance improvement in the area under the cross-validated receiver operating curve and (3) apply Platt's tuning to generate probability estimates from the component SVMs in order to augment clinical relevance.
Year
DOI
Venue
2009
10.1109/ICMLA.2009.74
ICMLA
Keywords
Field
DocType
biological effects of radiation,injuries,lung,medical computing,probability,radiation therapy,risk analysis,support vector machines,Platt tuning,binary outcome prediction models,cross-validated receiver operating curve,ensemble SVM model,feature ranking selection,lung inflammation,probability estimates,radiation pneumonitis risk model,statistical machine learning method,support vector machine,thoracic radiation therapy,biological effects of radiation,modeling,probability
Data mining,Receiver operating characteristic,Computer science,Clinical significance,Artificial intelligence,Probabilistic logic,Predictive modelling,Kernel (linear algebra),Radiation Pneumonitis,Pattern recognition,Support vector machine,Machine learning,Performance improvement
Conference
Citations 
PageRank 
References 
0
0.34
9
Authors
4
Name
Order
Citations
PageRank
Todd W. Schiller1473.16
Yixen Chen200.34
Issam El-Naqa352836.31
Joseph O. Deasy410514.98