An empirical evaluation of cost-based federated SPARQL query processing engines.
Umair QudusMuhammad SaleemAxel-Cyrille Ngonga NgomoYoung-Koo LeePublished in: Semantic Web (2021)
Keyphrases
- query processing
- query optimization
- rdf data
- query engine
- query plan
- digital libraries
- sparql queries
- query execution plan
- database systems
- execution plan
- maintenance cost
- index structure
- similarity search
- query language
- linked data
- cost estimation
- cost model
- high cost
- databases
- data model
- r tree
- query evaluation
- xml data
- aggregate queries
- database query processing
- data sources
- data management
- efficient query processing
- database management systems
- query optimizer
- database
- cost sensitive
- continuous queries
- minimum cost
- storage space
- materialized views
- total cost