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논문 기본 정보

자료유형
학술저널
저자정보
Hyunki Kim (Korea Advanced Institute of Science and Technology) Kiseok Song (K-Healthware) Taehwan Roh (K-Healthware) Hoi-Jun Yoo (Korea Advanced Institute of Science and Technology)
저널정보
대한전자공학회 JOURNAL OF SEMICONDUCTOR TECHNOLOGY AND SCIENCE Journal of Semiconductor Technology and Science Vol.16 No.4
발행연도
2016.8
수록면
436 - 442 (7page)

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초록· 키워드

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An electroencephalogram (EEG)-connectome processor to monitor and diagnose mental health is proposed. From 19-channel EEG signals, the proposed processor determines whether the mental state is healthy or unhealthy by extracting significant features from EEG signals and classifying them. Connectome approach is adopted for the best diagnosis accuracy, and synchronization likelihood (SL) is chosen as the connectome feature. Before computing SL, reconstruction optimizer (ReOpt) block compensates some parameters, resulting in improved accuracy. During SL calculation, a sparse matrix inscription (SMI) scheme is proposed to reduce the memory size to 1/24. From the calculated SL information, a small world feature extractor (SWFE) reduces the memory size to 1/29. Finally, using SLs or small word features, radial basis function (RBF) kernel-based support vector machine (SVM) diagnoses user’s mental health condition. For RBF kernels, look-up-tables (LUTs) are used to replace the floating-point operations, decreasing the required operation by 54%. Consequently, The EEG-connectome processor improves the diagnosis accuracy from 89% to 95% in Alzheimer’s disease case. The proposed processor occupies 3.8 ㎟ and consumes 1.71 mW with 0.18μm CMOS technology.

목차

Abstract
Ⅰ. INTRODUCTION
Ⅱ. ARCHITECTURE
Ⅲ. IMPLEMENTATION RESULTS
Ⅳ. CONCLUSIONS
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