Federating queries in SPARQL 1.1: Syntax, semantics and evaluation.
Carlos Buil ArandaMarcelo ArenasÓscar CorchoAxel PolleresPublished in: J. Web Semant. (2013)
Keyphrases
- sparql queries
- query language
- rdf graphs
- query processing
- response time
- web search engines
- rdf data
- query evaluation
- data model
- query formulation
- relational algebra
- database query languages
- query engine
- relational database systems
- query optimization
- formal semantics
- database queries
- graph model
- expressive power
- linked data
- predicate calculus
- definition language
- language constructs
- range queries
- aggregate queries
- operational semantics
- user queries
- semantic web
- semantic constraints
- aggregate functions
- rule language
- database