Operational and Abstract Semantics of a Query Language for Semi-Structured Information.
Agostino CortesiAgostino DovierElisa QuintarelliLetizia TancaPublished in: APPIA-GULP-PRODE (1998)
Keyphrases
- query language
- semi structured information
- xml data
- conceptual model
- semi structured data
- data model
- sparql queries
- formal semantics
- propositional dynamic logic
- relational algebra
- database query languages
- recursive queries
- object oriented
- language constructs
- rdf graphs
- expressive power
- data sets
- relational operators
- algebraic operations
- complex objects
- query evaluation
- database
- decision making
- logic programming
- structured documents
- high level
- databases
- query optimization
- semantic information
- web search
- low level
- xml documents