Keyphrases
- information retrieval
- cross language ir
- query expansion
- ad hoc retrieval
- cl sr
- question answering
- test collection
- information retrieval systems
- retrieval effectiveness
- retrieval model
- passage retrieval
- relevance feedback
- language modeling
- document collections
- relevant documents
- text retrieval
- cross language
- ir evaluation
- document retrieval
- query translation
- pseudo relevance feedback
- language model
- dublin city university
- itc irst
- relevance assessments
- data fusion
- web search
- text mining
- search engine