Keyphrases
- language modeling
- retrieval model
- query expansion
- language model
- information retrieval
- expert finding
- document retrieval
- term weighting
- information retrieval systems
- test collection
- statistical language models
- relevance model
- document length
- retrieval effectiveness
- language models for information retrieval
- retrieval systems
- trec collections
- cross lingual
- statistical language modeling
- probabilistic model
- ad hoc information retrieval
- vector space
- text retrieval
- sentence retrieval
- pseudo feedback
- relevance feedback
- vector space model
- language modeling approaches
- jelinek mercer
- n gram
- pseudo relevance feedback
- text classification
- word segmentation
- query terms
- query specific
- term dependencies
- average precision
- trec test collections
- image retrieval
- expert search
- smoothing methods
- term frequency
- mixture model
- language modeling framework
- improvements in retrieval effectiveness
- natural language processing
- search engine
- data mining