Data warehousing and olap for data mining a suppose the


Data Warehousing and OLAP for data mining

(a) Suppose the base cuboid of data cube contains only two cells

(a1, a2, a3 ...a10) (b1, b2, b3 ....b10) Where ai = bi where i is an odd number otherwise ai ≠ bi.

  • How many non-empty aggregate (i.e., non-base) cells are in this data  cube?
  • How many non-empty, closed aggregate cells are there in this data cube?
  • If we set minimum support = 2 how many non-empty aggregate cells are there in the corresponding iceberg cube?

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Basic Computer Science: Data warehousing and olap for data mining a suppose the
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