Bounded query classes and the difference hierarchy.
Richard BeigelWilliam I. GasarchLouise HayPublished in: Arch. Math. Log. (1989)
Keyphrases
- class hierarchy
- database
- query processing
- relevance feedback
- response time
- user queries
- class hierarchies
- aggregate queries
- query expansion
- query terms
- algebraic operations
- data sources
- user defined
- range queries
- hierarchical structure
- search queries
- data structure
- information retrieval
- vector space
- query evaluation
- probabilistic model
- retrieval method
- lower level
- skyline queries
- efficient processing
- keywords
- databases