An Execution Cost Model for Aggregate Queries over Knowledge Graphs.
Tao FuXiaoliang XuYuxiang WangPublished in: CBD (2021)
Keyphrases
- cost model
- aggregate queries
- query processing
- olap queries
- complex queries
- query optimization
- parallel execution
- query optimizers
- data cube
- execution plan
- query execution
- efficient computation
- query plan
- probabilistic xml
- disk resident
- range queries
- join algorithms
- database systems
- spatial join
- knowledge discovery
- efficient processing
- database
- integrity constraints
- multi dimensional
- data sources
- approximate answers
- neural network
- databases