Clusters, language models, and ad hoc information retrieval.
Oren KurlandLillian LeePublished in: ACM Trans. Inf. Syst. (2009)
Keyphrases
- ad hoc information retrieval
- language model
- language modeling
- n gram
- retrieval model
- document retrieval
- clustering algorithm
- probabilistic model
- information retrieval
- query expansion
- improve retrieval accuracy
- test collection
- vector space model
- cluster analysis
- context sensitive
- relevance model
- document clustering
- query terms
- smoothing methods
- inter document similarities
- machine learning