Keyphrases
- language model
- information retrieval
- language modeling
- n gram
- document retrieval
- document level
- speech recognition
- probabilistic model
- language modelling
- text retrieval
- retrieval model
- query expansion
- multiword
- statistical language models
- context sensitive
- vector space model
- relevance model
- test collection
- query terms
- text mining
- language model for information retrieval
- ad hoc information retrieval
- improve retrieval effectiveness
- smoothing methods
- term dependencies
- pseudo relevance feedback
- watermarking scheme
- text documents
- semantic information
- language models for information retrieval
- keywords
- translation model
- okapi bm
- hidden markov models