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Fast High-D OLAP with Minimal Cubing

  • Observation: OLAP occurs only on a small subset of dimensions at a time
  • Semi-Online Computational Model
    • Partition the set of dimensions into shell fragments
    • Compute data cubes for each shell fragment while retaining inverted indices or value-list indices
    • Given the pre-computed fragment cubes , dynamically compute cube cells of the high-dimensional data cube online

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