Keyphrases
- linked data
- query language
- data model
- rdf data
- semantic web
- complex objects
- sparql queries
- deductive databases
- transitive closure
- query optimization
- graph pattern matching
- rdf graphs
- machine learning
- management system
- knowledge representation
- search algorithm
- conjunctive queries
- data structure
- e learning
- relational algebra
- decision making
- information systems
- datalog programs
- artificial intelligence
- query engine
- information retrieval