Keyphrases
- user centered
- multimedia databases
- question answering
- answer extraction
- user centered design
- passage retrieval
- correct answers
- repertory grid
- information retrieval
- mobile applications
- user interface
- user centric
- educational games
- qa systems
- design process
- document retrieval
- information retrieval systems
- e government
- context aware
- test collection
- question answering systems
- retrieval systems
- learning technologies
- query expansion
- language model
- relevance feedback
- interactive information retrieval systems
- retrieval model
- search tools
- multimedia data
- similarity search
- data management
- multimedia