Range Top/Bottom k Queries in OLAP Sparse Data Cubes.
Zhong Wei LuoTok Wang LingChuan-Heng AngSin Yeung LeeBin CuiPublished in: DEXA (2001)
Keyphrases
- data cube
- on line analytical processing
- aggregate queries
- range sum queries
- olap queries
- sparse data
- multidimensional databases
- multi dimensional
- range queries
- data warehouse
- storage space
- approximate query answering
- pre computed
- online analytical processing
- olap systems
- multi dimensional data
- fact table
- multidimensional arrays
- multidimensional data model
- data structure
- star schema
- query processing
- multidimensional data
- high dimensional
- iceberg cubes
- query answers
- approximate answers
- query evaluation
- compressed data
- query optimization
- data sources
- database
- data cube construction
- olap operations
- space efficient
- data warehousing
- response time
- query language
- index structure
- knowledge discovery
- data analysis
- machine learning
- main idea consists
- databases