Keyphrases
- language model
- n gram
- query terms
- query expansion
- query specific
- language modeling
- term dependencies
- speech recognition
- document ranking
- relevance model
- web page retrieval
- document retrieval
- pseudo feedback
- statistical language modeling
- probabilistic model
- document length
- language modelling
- information retrieval
- retrieval effectiveness
- out of vocabulary
- retrieval model
- original query
- query processing
- context sensitive
- ir models
- ad hoc information retrieval
- language modeling framework
- mixture model
- information retrieval systems
- relevance feedback
- user queries
- test collection
- probabilistic retrieval models
- pseudo relevance feedback
- ad hoc retrieval
- translation model
- vector space model
- smoothing methods
- statistical language models
- text retrieval
- retrieval systems
- broadcast news
- retrieved documents
- query translation
- machine translation
- word clouds