Applying Query Expansion Techniques to Ad Hoc Monolingual Tasks with the IR-n System.
Elisa NogueraFernando LlopisPublished in: CLEF (2007)
Keyphrases
- query expansion
- information retrieval
- information retrieval systems
- retrieval effectiveness
- ad hoc retrieval
- relevance feedback
- retrieval model
- language modeling
- text retrieval
- pseudo relevance feedback
- automatic query expansion
- language model
- relevant documents
- expansion terms
- vocabulary mismatch
- original query
- biomedical information retrieval
- term selection
- interactive query expansion
- query terms
- document retrieval
- query disambiguation
- trec genomics track
- probabilistic retrieval model
- query translation
- model for information retrieval
- pseudo feedback
- document ranking
- retrieved documents
- question answering
- document collections
- text classification
- information extraction
- search engine