Expressivity issues in SPARQL: monotonicity and two-versus three-valued semantics.

Xiaowang Zhang Chenhong Meng Lei Zou

Published in: Sci. China Inf. Sci. (2018)

Keyphrases

sparql queries
nonmonotonic logics
key issues
query language
formal semantics
linked data
valued semantics
semantic information
semantic web
data model
rdf graphs
query optimization
web resources
nonmonotonic reasoning
knowledge representation
rdf data
case study
information systems