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arXiv 1406.6568cs.CVcs.LGphysics.med-ph
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基于支持向量机的降维结构MRI痴呆图像分类

Support vector machine classification of dimensionally reduced structural MRI images for dementia

Stanford University(斯坦福大学)

V. A. Miller, S. Erlien, J. Piersol

摘要:

我们使用支持向量机分类器对患者(CDR范围从0到2)中的极轻度到中度痴呆进行分类,该分类器作用于从OASIS-Brains数据集中的416名受试者的MRI脑扫描中获得的维度减少的特征集。我们使用图像分割和主成分分析来降低数据的维数。我们得到的功能集包含每个主题的11个功能。使用10倍交叉验证的分类器的性能进行评估。使用线性和(高斯)核,我们得到了86.4%(90.1%)的训练分类准确率,85.0%(85.7%)的测试准确率,68.7%(68.5%)的测试精度,68.0%(74.0%)的测试召回,和测试马修斯相关系数为0.594(0.616)。

英文摘要:

We classify very-mild to moderate dementia in patients (CDR ranging from 0 to 2) using a support vector machine classifier acting on dimensionally reduced feature set derived from MRI brain scans of the 416 subjects available in the OASIS-Brains dataset. We use image segmentation and principal component analysis to reduce the dimensionality of the data. Our resulting feature set contains 11 features for each subject. Performance of the classifiers is evaluated using 10-fold cross-validation. Using linear and (gaussian) kernels, we obtain a training classification accuracy of 86.4% (90.1%), test accuracy of 85.0% (85.7%), test precision of 68.7% (68.5%), test recall of 68.0% (74.0%), and test Matthews correlation coefficient of 0.594 (0.616).

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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