Soft stratification for magic set based query evaluation in deductive databases.
Andreas BehrendPublished in: PODS (2003)
Keyphrases
- deductive databases
- query evaluation
- disjunctive deductive databases
- logic programming
- data management
- integrity constraints
- conjunctive queries
- query processing
- query language
- data complexity
- fixpoint
- xml data
- query answers
- semantic query optimization
- transitive closure
- probabilistic databases
- integrity checking
- regular expressions
- query answering
- knowledge base
- database systems