Balancing Redundancy and Query Costs in Distributed Data Warehouses.
Klaus-Dieter ScheweJane ZhaoPublished in: APCCM (2005)
Keyphrases
- data warehouse
- query execution
- data sources
- query workloads
- olap queries
- data warehousing
- view selection
- bitmap indices
- databases
- data integration
- data cube
- decision support
- view maintenance
- data marts
- business intelligence
- query processing
- data analysis
- aggregate views
- data mining techniques
- user queries
- range queries
- database
- data management
- aggregate queries
- response time
- enterprise data
- star schema
- olap systems
- materialized views
- olap query processing
- parallel execution
- on line analytical processing
- multidimensional data
- data mining
- data structure
- semantically heterogeneous
- external data
- query rewriting
- complex queries
- cost model
- query evaluation
- summary tables
- metadata
- external data sources
- data sets