CostFed: Cost-Based Query Optimization for SPARQL Endpoint Federation.
Muhammad SaleemAlexander PotockiTommaso SoruOlaf HartigAxel-Cyrille Ngonga NgomoPublished in: SEMANTiCS (2018)
Keyphrases
- query optimization
- cost estimation
- database systems
- query plan
- cost model
- execution plan
- join operators
- query processing
- multidatabase systems
- sparql queries
- query execution
- query scheduling
- cardinality estimation
- xml data
- data placement
- continuous queries
- query execution plan
- join queries
- query engine
- data model
- approximate query answering
- query optimizers
- efficient query processing
- query optimizer
- query rewriting
- multi dimensional
- databases