Keyphrases
- information access
- multiple information sources
- digital libraries
- multi lingual
- information retrieval systems
- information retrieval
- user experience
- search engine
- evaluation campaigns
- semantic metadata
- cross language
- relational databases
- information seeking
- relational data
- semantic web
- semantic information
- multiple sources
- information sources
- critical information
- learning objects
- data sources
- databases
- semantic search
- multimedia
- learning algorithm
- knowledge sources
- e learning
- heterogeneous data sources