Keyphrases
- data cube
- multi dimensional
- online analytical processing
- storage space
- range sum queries
- data cube construction
- data warehouse
- aggregate queries
- on line analytical processing
- web usage
- multidimensional databases
- data structure
- cross level
- fact table
- olap systems
- space efficient
- olap queries
- text mining
- multidimensional data
- range queries
- compressed data
- main idea consists
- data mining techniques
- data mining applications
- knowledge discovery
- web mining
- frequent patterns
- frequent itemsets
- itemsets
- approximate query answering
- database
- databases
- sliding window
- association rules mining
- data analysis