Figure 4
From: Unsupervised EEG preictal interval identification in patients with drug-resistant epilepsy
Example of clustering solution inspection. Data was acquired for patient 112802 before the onset of seizure 6. (a) UMAP dimensionality reduction was performed on multivariate features. (b) The clustering solution was obtained using HDBSCAN. (c) Representation of the clustering solution and the preictal interval categorised as category 3. The preictal interval started 38.6 min before seizure onset, lasted for 19.9 min and verified 98.7% density. (d) Representation of the preictal interval and sleep-wake cycle, with a phi coefficient of 0.18.
