Fast query expansion using approximations of relevance models.
Marc-Allen CartrightJames AllanVictor LavrenkoAndrew McGregorPublished in: CIKM (2010)
Keyphrases
- query expansion
- relevance model
- pseudo relevance feedback
- language model
- language modeling
- ad hoc retrieval
- information retrieval systems
- original query
- retrieval effectiveness
- information retrieval
- relevance feedback
- document ranking
- text retrieval
- pseudo feedback
- retrieval model
- passage retrieval
- expansion terms
- relevant documents
- short queries
- language modelling
- retrieved documents
- n gram
- document retrieval
- topic models
- probabilistic model
- similarity measure