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Define base cuboid
Short answer
The base cuboid is the lowest-level cuboid in a data cube lattice containing all n dimensions at their most detailed granularity, holding unaggregated data. All other cuboids are derived by aggregating the base cuboid. Example: for dimensions time, item, location, the 3-D cuboid (time, item, location) is the base cuboid.
Define base cuboid.
The base cuboid is the lowest-level cuboid of a data cube lattice. It contains all n dimensions at their most detailed level, so it holds the finest-granularity, un-aggregated data. All other cuboids are obtained by aggregating the base cuboid.
Example: for dimensions time, item and location, the 3-D cuboid (time, item, location) is the base cuboid. For n dimensions without hierarchies, the cube has 2ⁿ cuboids; for n = 3 there are 8, including the base cuboid.
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