Keyphrases
- information retrieval
- cross language ir
- query expansion
- ad hoc retrieval
- question answering
- test collection
- cl sr
- passage retrieval
- information retrieval systems
- cross language
- retrieval effectiveness
- text retrieval
- ir evaluation
- relevance assessments
- retrieval model
- language model
- relevance feedback
- document collections
- information access
- language modeling
- machine learning
- web search
- cross lingual
- document retrieval
- text mining
- search engine
- itc irst
- learning to rank
- retrieval systems
- european languages
- blind relevance feedback
- image retrieval