Low-Power Hardware Implementation of a Support Vector Machine Training and Classification for Neural Seizure Detection

Elhosary, Heba; Zakhari, Michael H.; ElGammal, Mohamed A.; Elghany, Mohamed Abd; Salama, Khaled N.; Mostafa, Hassan

Low-Power Hardware Implementation of a Support Vector Machine Training and Classification for Neural Seizure Detection

Type

Article

Authors

Elhosary, Heba
Zakhari, Michael H.
ElGammal, Mohamed A.
Elghany, Mohamed Abd
Salama, Khaled N.

Mostafa, Hassan

KAUST Department

Electrical Engineering Program
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Online Publication Date

2019-10-14

Print Publication Date

2019

Date

2019-10-14

Abstract

In this paper, a low power support vector machine (SVM) training, feature extraction, and classification algorithm are hardware implemented in a neural seizure detection application. The training algorithm used is the sequential minimal optimization (SMO) algorithm. The system is implemented on different platforms: such as field programmable gate array (FPGA), Xilinx Virtex-7 and application specific integrated circuit (ASIC) using hardware-calibrated UMC 65nm CMOS technology. The implemented training hardware is introduced as an accelerator intellectual property (IP), especially in the case of large number of training sets, such as neural seizure detection. Feature extraction and classification blocks are implemented to achieve the best trade-off between sensitivity and power consumption. The proposed seizure detection system achieves a sensitivity around 96.77% when tested with the implemented linear kernel classifier. A power consumption evaluation is performed on both the ASIC and FPGA platforms showing that the ASIC power consumption is improved by a factor of 2X when compared with the FPGA counterpart.

Citation

Elhosary, H., Zakhari, M. H., ElGammal, M. A., Abd Elghany, M., Salama, K., & Mostafa, H. (2019). Low-Power Hardware Implementation of a Support Vector Machine Training and Classification for Neural Seizure Detection. IEEE Transactions on Biomedical Circuits and Systems, 1–1. doi:10.1109/tbcas.2019.2947044

Acknowledgements

This work was partially funded by ONE Lab at Zewail City of Science and Technology and at Cairo University, NTRA, ITIDA, and ASRT.