Topical Language Model for Snippet Retrieval.
Rongmei LiTheo P. van der WeidePublished in: INEX (2011)
Keyphrases
- language model
- retrieval model
- document retrieval
- document level
- query expansion
- ad hoc information retrieval
- test collection
- language modeling
- information retrieval
- language models for information retrieval
- n gram
- statistical language models
- query terms
- smoothing methods
- probabilistic model
- query specific
- document ranking
- speech recognition
- cross language retrieval
- document length
- trec test collections
- jelinek mercer
- pseudo feedback
- vector space model
- context sensitive
- web page retrieval
- retrieval effectiveness
- text retrieval
- language modelling
- ir models
- mixture model
- pseudo relevance feedback
- relevance model
- original query
- retrieval systems
- okapi bm
- information retrieval systems
- term dependencies
- image database
- average precision
- term frequency
- cross lingual
- relevant documents
- relevance feedback
- ad hoc retrieval
- inter document similarities
- divergence from randomness
- topic models
- keywords