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Complexity streams

Little info.

Scripts and directories

  • config.py - common stream configuration used in all experimental scripts.
  • stream-generator.py - base stream generator; stores files in streams/, which due to the size, are ignored by repository.
  • complexity-calculator.py - calculator of all complexities for all generated streams; stores files in complexities/, which are stored in repository.
  • example-stream.py - exemplary stream loader.
  • example-complexity.py - exemplary complexity signal loader.

Common configuration

Filename convention:

(?drift_type)_f(?dimensionality)_c(?clusters)_r(?replication)
  • Dimensionality (dimensionality):
    • 8 features (8),
    • 16 features (16),
    • 32 features (32).
  • Clusters (clusters):
    • 2 clusters (2),
    • 3 clusters (3),
    • 4 clusters (4).
  • Concept drifts (drift_type):
    • balanced streams:
      • sudden (bal_sudden),
      • gradual (bal_gradual),
      • incremental (bal_incremental).
    • streams imbalanced dynamically synchronously.
      • sudden (imb_sudden),
      • gradual (imb_gradual),
      • incremental (imb_incremental).
  • Other configuration (not in filename):
    • 10 replications,
    • fully informative,
    • 2000 chunks,
    • 500 samples in chunk,
    • 7 drifts.

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