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Density-Based Clustering: Basic Concepts

  • Two parameters:
    • Eps: Maximum radius of the neighbourhood
    • MinPts: Minimum number of points in an Eps-neighbourhood of that point
  • NEps(q): {p belongs to D | dist(p,q) ≤ Eps}
  • Directly density-reachable: A point p is directly density-reachable from a point q w.r.t. Eps, MinPts if
    • p belongs to NEps(q)
    • core point condition:
      |NEps (q)| ≥ MinPts


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