Keyphrases
- query processing
- query evaluation
- horn clauses
- response time
- query language
- higher order
- efficient processing
- logic programs
- first order logic
- logic programming
- web search engines
- user queries
- database
- database queries
- probabilistic databases
- range queries
- query logs
- answering queries
- deductive databases
- containment of conjunctive queries
- fixpoint
- complex queries
- search queries
- data management