151. A method for detecting high-frequency oscillations using semi-supervised k-means and mean shift clustering
- Author
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Renquan Lu, Hao Wu, Yuxiao Du, Bo Sun, and Chunling Zhang
- Subjects
0209 industrial biotechnology ,medicine.diagnostic_test ,Computer science ,business.industry ,Cognitive Neuroscience ,k-means clustering ,Pattern recognition ,02 engineering and technology ,Electroencephalography ,Computer Science Applications ,020901 industrial engineering & automation ,Artificial Intelligence ,0202 electrical engineering, electronic engineering, information engineering ,medicine ,020201 artificial intelligence & image processing ,Epilepsy surgery ,Epileptic seizure ,Artificial intelligence ,Mean-shift ,Sensitivity (control systems) ,medicine.symptom ,Cluster analysis ,business - Abstract
This paper proposes a method to detect the high-frequency oscillations (HFOs) in epileptic seizure onset zones (SOZs) localization using semi-supervised k-means and mean shift algorithm. Wavelet entropy (WE) and teager energy operator (TEO) are adopted to distinguish HFOs from normal electroencephalogram (EEG). Labeled data are used to initialize the clustering center of semi-supervised k-means algorithm, and unlabeled data are employed to obtain physiological and suspected pathological HFOs. For the suspected pathological HFOs, the mean shift algorithm is used for clustering, and the results are analyzed by the spectral center algorithm to locate SOZs. By comparing the EEG data of five patients with the results of the other three methods, it can be seen that the method proposed in this paper has good sensitivity and specificity, which is helpful for accurate localization before clinical epilepsy surgery.
- Published
- 2019