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Iceberg Pruning in Shared Dimensions

  • Anti-monotonic property of shared dimensions
    • If the measure is anti-monotonic , and if the aggregate value on a shared dimension does not satisfy the iceberg condition , then all the cells extended from this shared dimension cannot satisfy the condition either
  • Intuition: if we can compute the shared dimensions before the actual cuboid, we can use them to do Apriori pruning
  • Problem: how to prune while still aggregate simultaneously on multiple dimensions?

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