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- W2024364079 abstract "Radiation-induced lung injury, radiation pneumonitis (RP), is a potentially fatal side-effect of thoracic radiation therapy. In this work, using an ensemble of support vector machines (SVMs), we build a binary RP risk model from clinical and dosimetric parameters. Patient/treatment data is partitioned into balanced subsets to prevent model bias. Forward feature selection, maximizing the area under the curve (AUC) for a cross-validated receiver operating characteristic (ROC) curve, is performed on each subset. Model parameter selection and construction occurs concurrently via alternating SVM and gradient descent steps to minimize estimated generalization error. We show that an ensemble classifier with a mean fusion function, five component SVMs, and limit of five features per classifier exhibits a mean AUC of 0.818—an improvement over previous SVM models of RP risk." @default.
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- W2024364079 date "2010-06-01" @default.
- W2024364079 modified "2023-09-24" @default.
- W2024364079 title "Modeling radiation-induced lung injury risk with an ensemble of support vector machines" @default.
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- W2024364079 doi "https://doi.org/10.1016/j.neucom.2009.09.023" @default.
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