Fig. 3
From: Knowledge graph representation of the mappings between seizure semiology and epileptogenic zones
Correlation-based clustering workflow for Semi\(\rightarrow\)Semi relationship extraction. Step 1: Co-occurrence matrix showing raw frequency counts. Step 2: Absolute Pearson correlation matrix revealing standardized association patterns. Step 3: Gaussian Mixture Model with five components fitted to correlation distribution. Step 4: Illustrative example showing cluster assignment for \(r=0.52\) (red dashed line). Step 5: Hard assignment strategy: each correlation coefficient is assigned to the Gaussian component k that maximizes the weighted likelihood \(\pi _k \mathcal {N}(|r||\mu _k,\Sigma _k)\).
