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Optimisation Techniques for Flexible SPARQL Queries.
Riccardo Frosini
Alexandra Poulovassilis
Peter T. Wood
Andrea Calì
Published in:
ACM Trans. Web (2022)
Keyphrases
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sparql queries
rewriting rules
rdf data
relational algebra
query language
graph model
query optimization
cost model
complex objects
query formulation
data structure
relational databases
expressive power