Keyphrases
- rdf data
- rdf schema
- semantic web
- query language
- sparql queries
- storage and retrieval
- linked data
- data model
- query processing
- rdf knowledge bases
- rdf graphs
- web resources
- graph patterns
- graph databases
- regular expressions
- natural language
- expressive power
- relational model
- information systems
- artificial intelligence
- machine learning
- data sets
- query evaluation
- database
- application domains
- database systems
- data mining