Conjunctive Queries on Probabilistic Graphs: The Limits of Approximability.
Antoine AmarilliTimothy van BremenKuldeep S. MeelPublished in: ICDT (2024)
Keyphrases
- conjunctive queries
- probabilistic databases
- boolean expressions
- query answering
- query evaluation
- bounded treewidth
- query language
- integrity constraints
- data complexity
- data exchange
- np complete
- special case
- query containment
- decision procedures
- uncertain data
- query rewriting
- unions of conjunctive queries
- regular path queries
- relational queries
- probabilistic model
- approximation algorithms
- queries using views
- probabilistic reasoning
- dl lite
- bayesian networks
- schema mappings
- datalog programs
- expressive power
- data management
- containment of conjunctive queries
- data analysis