The dichotomy of conjunctive queries on probabilistic structures.
Nilesh N. DalviDan SuciuPublished in: PODS (2007)
Keyphrases
- conjunctive queries
- probabilistic databases
- boolean expressions
- query answering
- query evaluation
- integrity constraints
- data complexity
- np complete
- query language
- data exchange
- special case
- query containment
- query rewriting
- uncertain data
- decision procedures
- bayesian networks
- datalog programs
- data sets
- containment of conjunctive queries
- bounded treewidth
- queries using views
- relational algebra
- regular path queries
- tuple generating dependencies
- database
- conjunctive query containment
- aggregate queries
- structural features
- probabilistic inference
- schema mappings
- np hard
- data mining
- databases