In this work we introduce the use
of penalized logistic regression (PLR) to the problem of classification of MRI
images and automatic detection of Alzheimer’s disease. Classification of sMRI
is approached as a large scale regularization problem which uses voxels as
input features.
We evaluate how differences in sMRI pre-processing steps such
as smoothing, normalization, and template selection affect the performance of
high dimensional classification methods. In addition, we compared the relative performance of PLR to a different approach based on support vector machines. To
study these questions we used data from the Alzheimer Disease Neuroimaging
Initiative (ADNI).
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