Queries with aggregate functions over fuzzy RDF data.
Zongmin MaXiaowen ZhangYuhan ZhaoPublished in: J. Supercomput. (2023)
Keyphrases
- rdf data
- aggregate functions
- query language
- sparql queries
- data model
- recursive queries
- relational algebra
- expressive power
- aggregate queries
- query processing
- query evaluation
- semantic web
- storage and retrieval
- relational model
- transitive closure
- linked data
- database
- regular expressions
- xml data
- conjunctive queries
- object oriented
- relational calculus
- relational database systems
- complex objects
- data cube
- range queries
- integrity constraints
- data analysis
- database systems