Query Transformation in a Multidatabase Environments Using a Universal Symbolic Manipulation System.
Marek RusinkiewiczBogdan D. CzejdoPublished in: ACM Conference on Computer Science (1989)
Keyphrases
- query processing
- multidatabase environment
- response time
- transformation rules
- data structure
- dynamic environments
- transaction management
- database
- keywords
- database systems
- query expansion
- user queries
- relevance feedback
- multidatabase systems
- query execution
- query evaluation
- database queries
- search queries
- data sources
- data objects
- query optimization
- query terms
- language model
- information retrieval
- data sets