Spectral Clustering excels at finding clusters with non-convex shapes (e.g., L-shaped, crescent-shaped regions). If K-Means fails to capture the natural grouping in your data, try Spectral Clustering.
Use Cases
- Complex spatial patterns: When building layouts or urban patterns form non-convex shapes (e.g., L-shaped building clusters, ring-shaped arrangements).
- Connectivity-based grouping: Group geometries based on their adjacency relationships rather than just distance.
- Irregular cluster shapes: When K-Means produces unsatisfactory results because clusters are not spherical.