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Subspace Clustering Method (II): Correlation-Based Methods

  • Subspace search method: similarity based on distance or density
  • Correlation-based method: based on advanced correlation models
  • Ex. PCA-based approach:
    • Apply PCA (for Principal Component Analysis) to derive a set of new, uncorrelated dimensions,
    • then mine clusters in the new space or its subspaces
  • Other space transformations:
    • Hough transform
    • Fractal dimensions

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