Multi-query Optimization via Common Sub Query Elimination for SPARQL.
Xiaoyi ZhouJie LuoTao HePublished in: ISCID (2) (2017)
Keyphrases
- query optimization
- query processing
- query execution
- sparql queries
- queries involving
- cost model
- query optimizer
- query scheduling
- cardinality estimation
- query rewriting
- query plan
- selectivity estimation
- query execution plan
- database systems
- query execution plans
- complex queries
- recursive queries
- join queries
- efficient execution
- query optimizers
- efficient query processing
- execution plan
- cost estimation
- multidatabase systems
- query engine
- approximate query answering
- xml data
- query evaluation
- efficient processing
- data management
- response time
- continuous queries
- rdf data
- user queries
- database
- multidatabase environment
- relational queries
- query result
- query formulation
- index structure
- multi dimensional
- databases
- join operator
- r tree
- data integration
- data sources