Data Warehousing and Data Mining20795 marksNumerical: data cube cuboidsEfficient method for data cube computation
Suppose that we have 5 dimensional data. What will be total number of cuboids generated? If we consider each dimension has 5 levels, what will be the number of cuboids generated?
Suppose that we have 5 dimensional data. What will be total number of cuboids generated? If we consider each dimension has 5 levels, what will be the number of cuboids generated? [5]
- Number of dimensions: $n = 5$ - Number of levels per dimension (Part 2): $L = 5$ for each dimension --- For a data cube of $n$ dimensions where each dimension has no associated concept hierarchy, the total number of cuboids is: $$\text{Total Cuboids} = 2^n$$ Each cuboid corresponds to a subset ...