Characterizing and Computing Semantically Correct Answers from Databases with Annotated Logic and Answer Sets.
Pablo BarcelóLeopoldo E. BertossiLoreto BravoPublished in: Semantics in Databases (2001)
Keyphrases
- answer sets
- logic programming
- correct answers
- databases
- logic programs
- answer set programming
- semantics of logic programs
- answer set semantics
- answer set programs
- deductive databases
- database
- normal logic programs
- nonmonotonic reasoning
- extended logic programs
- classical logic
- relational databases
- stable models
- programming language
- semantics for logic programs
- logic program updates
- database systems
- reasoning tasks
- fixpoint
- knowledge representation
- counter examples
- data integration
- loop formulas
- reasoning about actions
- natural language
- expert systems
- data model
- propositional logic
- horn clauses
- modal logic