Keyphrases
- question answering
- cross language
- qa clef
- information retrieval
- natural language processing
- natural language
- test collection
- passage retrieval
- information extraction
- query expansion
- machine learning
- cross lingual
- named entities
- image retrieval
- database systems
- decision trees
- query translation
- website
- database
- dublin city university
- multilingual information access
- itc irst