Podcast
Questions and Answers
What is the primary purpose of partitioning the dimensions into a set of disjoint dimension fragments?
What is the primary purpose of partitioning the dimensions into a set of disjoint dimension fragments?
- To enable efficient computation of cuboid cells (correct)
- To construct spatial data cubes
- To enable ranking of data cubes
- To reduce the memory usage of the original database
What is the measure used in the running example of the tiny database?
What is the measure used in the running example of the tiny database?
- SUM()
- AVERAGE()
- MAX()
- COUNT() (correct)
What is the primary usage of the inverted index representation in the shell fragment approach?
What is the primary usage of the inverted index representation in the shell fragment approach?
- Reducing memory usage of the original database
- Enabling ranking of data cubes
- Efficient computation of cuboid cells (correct)
- Constructing spatial data cubes
What is the name of the algorithm used to compute shell fragments of a data cube?
What is the name of the algorithm used to compute shell fragments of a data cube?
What is the purpose of the Frag-Shells algorithm?
What is the purpose of the Frag-Shells algorithm?
What is the result of constructing the inverted index for the given database?
What is the result of constructing the inverted index for the given database?
What is the primary advantage of using the shell fragment approach?
What is the primary advantage of using the shell fragment approach?
What is the purpose of the inverted index table?
What is the purpose of the inverted index table?
What is the relationship between the memory usage of the original database and the inverted index table?
What is the relationship between the memory usage of the original database and the inverted index table?
What is the primary application of the Frag-Shells algorithm in data warehousing?
What is the primary application of the Frag-Shells algorithm in data warehousing?
