Keyphrases
- language model
- n gram
- query expansion
- query terms
- query specific
- language modeling
- speech recognition
- document ranking
- relevance model
- term dependencies
- pseudo feedback
- document retrieval
- web page retrieval
- document length
- test collection
- probabilistic model
- language modelling
- ad hoc retrieval
- out of vocabulary
- statistical language modeling
- retrieval effectiveness
- information retrieval
- retrieval model
- pseudo relevance feedback
- original query
- query processing
- mixture model
- ad hoc information retrieval
- vector space model
- relevance feedback
- context sensitive
- ir models
- user queries
- smoothing methods
- language modeling framework
- statistical language models
- keywords
- translation model
- text retrieval
- probabilistic retrieval models
- retrieved documents
- average precision
- retrieval method
- cross lingual
- vector space
- generative model
- expectation maximization
- co occurrence