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HDBSCAN — how does it improve on DBSCAN?

hard

Answer

  • Runs DBSCAN over all density levels and extracts the most stable clusters — avoids picking a single eps.
  • Handles clusters of varying density (DBSCAN's biggest failure mode).
  • Output: cluster labels + outlier scores + soft memberships.
  • Standard practice for real-world clustering when densities are heterogeneous (customer segments, sensor data).
  • Slightly slower but no eps tuning needed.
Check yourself — multiple choice
  • Same as DBSCAN
  • Runs DBSCAN over all density thresholds and picks stable clusters → no eps to tune, handles varying densities
  • Random
  • Only tiny data

HDBSCAN: multi-density DBSCAN; no eps; handles varying densities.

#clustering#density

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