Semi-negative Abductive Logic Programs with Implicative Integrity Constraints: Semantics and Properties.
Paolo MancarellaFrancesca ToniPublished in: Logic Programs, Norms and Action (2012)
Keyphrases
- integrity constraints
- logic programs
- logic programming
- deductive databases
- stable models
- semantics of logic programs
- abductive logic programming
- abductive reasoning
- answer sets
- answer set semantics
- fixpoint
- normal logic programs
- stable model semantics
- answer set programming
- model theoretic
- nonmonotonic reasoning
- functional dependencies
- active rules
- consistent query answering
- logic rules
- null values
- strong equivalence
- database schema
- query answering
- conjunctive queries
- semantics for logic programs
- computational properties
- reasoning tasks
- default logic
- default theories
- knowledge representation
- xml documents
- function symbols
- horn clauses
- desirable properties
- constraint logic programming
- consistent answers
- default reasoning