Keyphrases
- language model
- training data
- language modeling
- n gram
- information retrieval
- probabilistic model
- language modelling
- mixture model
- retrieval model
- test collection
- smoothing methods
- speech recognition
- statistical language models
- document retrieval
- learning algorithm
- vector space model
- query expansion
- supervised learning
- context sensitive
- decision trees
- ad hoc information retrieval
- language model for information retrieval
- query terms
- translation model
- query specific
- prior knowledge
- training set
- language models for information retrieval
- statistical models
- model selection
- active learning
- document ranking