A study of smoothing methods for language models applied to information retrieval.
ChengXiang ZhaiJohn D. LaffertyPublished in: ACM Trans. Inf. Syst. (2004)
Keyphrases
- language model
- smoothing methods
- information retrieval
- language modeling
- language models for information retrieval
- n gram
- retrieval model
- document length
- document retrieval
- query expansion
- language modeling approaches
- probabilistic model
- test collection
- query terms
- statistical language models
- language modelling
- vector space model
- retrieval effectiveness
- document language models
- document ranking
- question answering
- mixture model
- ir models
- relevance model
- document representation
- language modeling framework
- information retrieval systems
- text mining
- search engine