Cube: A Lattice of Cuboids is a lecture slide from the University of Washington.

In this paper, an optimal aggregation and counter-aggregation (drill-down) methodology is proposed on multidimensional data cube. The main idea is to aggregate on smaller cuboids after...

A data cube is defined as a lattice of cuboids representing multidimensional data, where each cuboid aggregates measures for different group-bys. It allows for online analytical processing by precomputing and storing data for efficient query processing.

In data warehousing literature, an n-D base cube is called a base cuboid. The top most 0-D cuboid, which holds the highest-level of summarization, is called the apex cuboid. The lattice of cuboids forms a data cube. Week. ... Spain ... ... ... Mexico. L. Chan ... Toronto. ... M. Wind.

Data Cube: A Lattice of Cuboids Base vs. aggregate cells; ancestor vs. descendant cells; parent vs. child cells 1. (9/15, milk, Urbana, Dairy_land) 2. ... Precompute only the cuboids involving a small # of dimensions, e.g., 3 More dimension combinations will need to be computed on the fly

2013年9月1日 · Thus objective of this paper is to design an algorithm for formal analysis leading towards detection of an optimal path for any two given valid pair of cuboids at different levels. Algorithm is...

Below is an example of a lattice structure having three dimensions Time (T), Product (P), and Sales (S) in the data warehouse. Cuboid TPM is the base cuboid, moving up in the hierarchy of cuboid,...

We begin in Section 5.1 with preliminary concepts for cube computation. These summarize the notion of the data cube as a lattice of cuboids, and describe. 3 the basic forms of cube materialization. General strategies for cube computation are given. Section 5.2 follows with an in-depth look at specific methods for data cube computation.

How many cuboids in an n-dimensional cube with L levels? Materialization of data cube Materialize every (cuboid) (full materialization), none (no materialization), or some (partial materialization)

Cube Shell: The cuboids involving a small # of dimensions, e.g., 3 Idea: Only compute cube shells, other dimension combinations can be computed on the fly