scholarly journals Deteksi Kantuk Menggunakan Jaringan Saraf Tiruan Radial Basis Function dan Particle Swarm Optimization dengan RR Interval Elektrokardiogram

2020 ◽  
Vol 10 (01) ◽  
pp. 74
Author(s):  
Ariefah Shalihah ◽  
Nuryani Nuryani ◽  
Artono Dwijo Sutomo

<p>Sistem deteksi kantuk dirancang menggunakan Elektrokardiogram (EKG) dengan Jaringan Saraf Tiruan <em>Radial Basis Function </em>dan <em>Particle Swarm Optimization </em>(JST RBF-PSO). <em>Karolinska Sleepiness Scale </em>(KSS) menjadi acuan tingkat kantuk yang dikelompokkan menjadi kelas terjaga dan kelas mengantuk. Sistem ini menggunakan algoritma Pan-Tomkins untuk menentukan interval RR dari EKG. Fitur yang digunakan adalah 15 parameter fitur statistik. Pelatihan dan pengujian data menggunakan JST RBF-PSO dengan metode validasi silang. PSO digunakan untuk mengoptimasi parameter utama JST RBF yaitu bobot, pusat dan lebar. Sistem deteksi kantuk ini diuji menggunakan DROZY <em>Database. </em>Hasil penelitian menunjukkan akurasi sistem ini pada segmentasi 40 detik, jumlah neuron 150 dan 15 fitur statistik sebesar 88,36%.</p>

2010 ◽  
Vol 20 (02) ◽  
pp. 109-116 ◽  
Author(s):  
DEFENG WU ◽  
KEVIN WARWICK ◽  
ZI MA ◽  
MARK N. GASSON ◽  
JONATHAN G. BURGESS ◽  
...  

Deep Brain Stimulation (DBS) has been successfully used throughout the world for the treatment of Parkinson's disease symptoms. To control abnormal spontaneous electrical activity in target brain areas DBS utilizes a continuous stimulation signal. This continuous power draw means that its implanted battery power source needs to be replaced every 18–24 months. To prolong the life span of the battery, a technique to accurately recognize and predict the onset of the Parkinson's disease tremors in human subjects and thus implement an on-demand stimulator is discussed here. The approach is to use a radial basis function neural network (RBFNN) based on particle swarm optimization (PSO) and principal component analysis (PCA) with Local Field Potential (LFP) data recorded via the stimulation electrodes to predict activity related to tremor onset. To test this approach, LFPs from the subthalamic nucleus (STN) obtained through deep brain electrodes implanted in a Parkinson patient are used to train the network. To validate the network's performance, electromyographic (EMG) signals from the patient's forearm are recorded in parallel with the LFPs to accurately determine occurrences of tremor, and these are compared to the performance of the network. It has been found that detection accuracies of up to 89% are possible. Performance comparisons have also been made between a conventional RBFNN and an RBFNN based on PSO which show a marginal decrease in performance but with notable reduction in computational overhead.


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