Keyphrases
- query evaluation
- twig queries
- probabilistic xml
- xml data
- twig pattern
- querying xml documents
- query language
- xml documents
- query processing
- xml queries
- native xml
- deductive databases
- conjunctive queries
- efficient processing
- data complexity
- data management
- xml databases
- encoding scheme
- xml streams
- probabilistic databases
- transitive closure
- xpath queries
- aggregate queries
- uncertain data
- data model
- hierarchical data
- relational databases
- labeling scheme
- efficient query evaluation
- query engine
- regular expressions
- inverted lists
- multi dimensional
- pattern queries
- data structure
- query expansion
- query optimization
- metadata
- xml schema