UFRGS@CLEF2009: Retrieval by Numbers.
Thyago Bohrer BorgesViviane Pereira MoreiraPublished in: CLEF (1) (2009)
Keyphrases
- query expansion
- information retrieval
- test collection
- multilingual information retrieval
- ad hoc retrieval
- cross language retrieval
- question answering
- document retrieval
- information retrieval systems
- retrieval model
- passage retrieval
- cross language
- text retrieval
- retrieval systems
- language model
- image database
- relevance feedback
- image retrieval
- cl sr
- pseudo relevance feedback
- machine learning
- retrieval method
- query formulation
- efficient retrieval
- evaluation campaigns