Keyphrases
- multiple sources
- multiple information sources
- data sources
- databases
- database
- domain adaptation
- query language
- multi source
- query processing
- geospatial data
- neural network
- data from multiple sources
- heterogeneous sources
- possibility theory
- multimedia databases
- incomplete information
- decision making
- web pages
- user interests
- efficient retrieval
- multiple data sources
- data model
- spatio temporal