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Data Cube Aggregation
- The lowest level of a data cube (base cuboid)
- The aggregated data for an individual entity of interest
- E.g., a customer in a phone calling data warehouse
- Multiple levels of aggregation in data cubes
- Further reduce the size of data to deal with
- Reference appropriate levels
- Use the smallest representation which is enough to solve the task
- Queries regarding aggregated information should be answered using data cube, when possible
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