Keyphrases
- logic programs
- logic programming
- stable models
- fixpoint
- answer sets
- answer set programming
- databases
- computational properties
- background knowledge
- data model
- logic program updates
- prolog programs
- stable model semantics
- normal logic programs
- database schema
- inside outside algorithm
- horn clauses
- loop formulas
- inductive logic programming
- database systems
- declarative semantics
- fixpoint semantics
- general logic programs
- xml schema
- data management
- propositional theories
- schema mappings
- existentially quantified
- object oriented