Visual Snow

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Visual Snow Research Portal

Multi-Dimensional Markov Cluster (MCL) — 3D to 10D State Spaces

Patient trajectories modelled as stochastic Markov chains in n-dimensional symptom vector space (3D–10D). Each node is a symptom cluster; edges carry weekly transition probabilities.

Load demo data or sync from the clinical portal to run clustering.

State Transition Matrix

Cluster Group Definitions

Run MCL to see cluster definitions.

3D Trajectory Plot

Patient state paths through symptom space — each line is one patient's weekly trajectory.

Run MCL to render trajectories.

Steady-State Distribution

Long-run probability of occupying each cluster state — proxy for population-level outcome forecast.

Convergence & Aversion Detection

Identifies patients on divergent (worsening) vs. convergent (improving) trajectories using eigenvalue decomposition of the transition matrix.

Run MCL first.

Silhouette k-Selection

Mean silhouette coefficient (Rousseeuw 1987) for k = 2–6. Higher score = better cluster separation. Highlighted bar = recommended k. Recomputed after each MCL run.