Keyphrases
- language model
- information retrieval
- language modeling
- document retrieval
- query expansion
- probabilistic model
- test collection
- speech recognition
- retrieval model
- generative model
- n gram
- language modelling
- language models for information retrieval
- language modeling framework
- statistical language models
- patent retrieval
- vector space model
- context sensitive
- relevance model
- pseudo relevance feedback
- ad hoc information retrieval
- smoothing methods
- passage retrieval
- retrieval effectiveness
- query terms
- tf idf
- average precision
- translation model
- cross lingual
- document length
- statistical language modeling
- information retrieval systems