Heuristics-based Query Reordering for Federated Queries in SPARQL 1.1 and SPARQL-LD.
Thanos YannakisPavlos FafaliosYannis TzitzikasPublished in: CoRR (2018)
Keyphrases
- sparql queries
- rdf data
- query engine
- query language
- query evaluation
- query processing
- query formulation
- data sources
- data model
- linked data
- query optimization
- rdf graphs
- rewriting rules
- storage and retrieval
- semantic web
- user queries
- query execution plan
- relational algebra
- query rewriting
- database queries
- query patterns
- response time
- database
- query execution
- graph patterns
- sql queries
- complex queries
- data management
- data integration
- query result
- xpath queries
- information retrieval
- query terms
- query answers
- xml databases
- cost model
- range queries
- search engine
- path queries
- queries involving
- query complexity
- databases
- rdf triples
- search queries
- relational databases
- original query
- web queries
- web search engines
- efficient processing
- keyword queries
- regular expressions