Keyphrases
- language model
- social media
- language modeling
- n gram
- document retrieval
- information retrieval
- retrieval model
- prediction accuracy
- speech recognition
- probabilistic model
- test collection
- social networks
- query expansion
- statistical language models
- language modelling
- language models for information retrieval
- relevance model
- context sensitive
- smoothing methods
- document ranking
- user generated content
- query terms
- pseudo relevance feedback
- word error rate
- language model for information retrieval
- vector space model
- retrieval effectiveness
- ad hoc information retrieval
- passage retrieval
- okapi bm
- information retrieval systems