Using Social Annotations to Smooth the Language Model for IR.
Shengliang XuShenghua BaoYong YuYunbo CaoPublished in: PAKDD (2007)
Keyphrases
- language model
- social annotations
- smoothing methods
- information retrieval
- retrieval model
- ad hoc information retrieval
- query expansion
- language modeling
- language modeling framework
- document ranking
- retrieval effectiveness
- document retrieval
- n gram
- probabilistic model
- expansion terms
- test collection
- text retrieval
- query terms
- vector space model
- web search
- document similarity
- pseudo relevance feedback
- relevance model
- information retrieval systems
- search engine
- relevant documents
- relevance assessments
- web documents
- information extraction
- average precision
- term frequency
- query specific
- relevance feedback