Keyphrases
- query expansion
- information retrieval systems
- information retrieval
- post retrieval
- retrieval model
- relevance feedback
- text retrieval
- language model
- retrieval effectiveness
- automatic query expansion
- ad hoc retrieval
- language modeling
- ranked retrieval
- expansion terms
- pseudo relevance feedback
- original query
- query terms
- document ranking
- relevant documents
- interactive query expansion
- pseudo feedback
- relevance model
- term selection
- query specific
- short queries
- retrieval systems
- query expansion methods
- social media
- biomedical information retrieval
- query disambiguation
- text based image retrieval
- blind feedback
- passage retrieval
- document collections