Language Model Combination for Community-based Q & A Retrieval.
Akira TakahashiAtsuhiro TakasuJun AdachiPublished in: ICTAI (2) (2010)
Keyphrases
- language model
- retrieval model
- document retrieval
- ad hoc information retrieval
- query expansion
- test collection
- information retrieval
- language modeling
- query terms
- language models for information retrieval
- smoothing methods
- n gram
- query specific
- statistical language models
- trec test collections
- document length
- relevance model
- cross language retrieval
- speech recognition
- probabilistic model
- jelinek mercer
- vector space model
- document ranking
- language modelling
- web page retrieval
- text retrieval
- retrieval effectiveness
- pseudo feedback
- pseudo relevance feedback
- term dependencies
- retrieval systems
- document level
- average precision
- image retrieval
- ir models
- mixture model
- relevant documents
- term weighting
- probabilistic retrieval models
- information retrieval systems
- okapi bm
- context sensitive
- cross lingual
- tf idf
- retrieval process
- translation model
- term frequency
- language modeling framework
- inter document similarities
- retrieval accuracy
- image database
- co occurrence
- word clouds
- relevance feedback