Mr. Nanfeng Jie Profile

Nanfeng Jie

at Institute of Automation

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Proceedings Article | 18 March 2014 Paper

Automatic classification of schizophrenia using resting-state functional language network via an adaptive learning algorithm

Maohu Zhu, Nanfeng Jie, Tianzi Jiang

Proceedings Volume 9035, 903522 (2014) https://doi.org/10.1117/12.2043240

KEYWORDS: Functional magnetic resonance imaging, Control systems, Image classification, Brain, Algorithms, Diagnostics, Facial recognition systems, Machine learning, Psychiatry, Detection and tracking algorithms

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A reliable and precise classification of schizophrenia is significant for its diagnosis and treatment of schizophrenia. Functional magnetic resonance imaging (fMRI) is a novel tool increasingly used in schizophrenia research. Recent advances in statistical learning theory have led to applying pattern classification algorithms to access the diagnostic value of functional brain networks, discovered from resting state fMRI data. The aim of this study was to propose an adaptive learning algorithm to distinguish schizophrenia patients from normal controls using resting-state functional language network. Furthermore, here the classification of schizophrenia was regarded as a sample selection problem where a sparse subset of samples was chosen from the labeled training set. Using these selected samples, which we call informative vectors, a classifier for the clinic diagnosis of schizophrenia was established. We experimentally demonstrated that the proposed algorithm incorporating resting-state functional language network achieved 83.6% leaveone- out accuracy on resting-state fMRI data of 27 schizophrenia patients and 28 normal controls. In contrast with KNearest- Neighbor (KNN), Support Vector Machine (SVM) and l1-norm, our method yielded better classification performance. Moreover, our results suggested that a dysfunction of resting-state functional language network plays an important role in the clinic diagnosis of schizophrenia.

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