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http://dx.doi.org/10.5762/KAIS.2013.14.5.2393

A screening of Alzheimer's disease using basis synthesis by singular value decomposition from Raman spectra of platelet  

Park, Aaron (School of Electronics and Computer Engineering, Chonnam National University)
Baek, Sung-June (School of Electronics and Computer Engineering, Chonnam National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.14, no.5, 2013 , pp. 2393-2399 More about this Journal
Abstract
In this paper, we proposed a method to screening of Alzheimer's disease (AD) from Raman spectra of platelet with synthesis of basis spectra using singular value decomposition (SVD). Raman spectra of platelet from AD transgenic mice are preprocessed with denoising, removal background and normalization method. The column vectors of each data matrix consist of Raman spectrum of AD and normal (NR). The matrix is factorized using SVD algorithm and then the basis spectra of AD and NR are determined by 12 column vectors of each matrix. The classification process is completed by select the class that minimized the root-mean-square error between the validation spectrum and the linear synthesized spectrum of the basis spectra. According to the experiments involving 278 Raman spectra, the proposed method gave about 97.6% classification rate, which is better performance about 6.1% than multi-layer perceptron (MLP) with extracted features using principle components analysis (PCA). The results show that the basis spectra using SVD is well suited for the diagnosis of AD by Raman spectra from platelet.
Keywords
Alzheimer's disease; Dementia; Pattern recognition; Raman spectroscopy; Singular value decomposition;
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