Keyphrases
- databases
- information retrieval
- database
- information retrieval systems
- search engine
- relational databases
- learning to rank
- knowledge discovery
- test collection
- data integration
- information filtering
- learning algorithm
- database systems
- data warehouse
- data retrieval
- data management
- query expansion
- document collections
- database applications
- neural network
- language modeling
- relevant documents
- retrieval systems
- bibliographic databases
- question answering
- text mining
- collaborative filtering
- information extraction
- xml documents
- website
- multimedia