Query Expansion Using Semantic Pruning in Language Model for Information Retrieval.
Wei TuLixin GanZhihua XiePublished in: CCPR (2012)
Keyphrases
- query expansion
- language model for information retrieval
- language model
- information retrieval systems
- language modeling
- retrieval effectiveness
- pseudo relevance feedback
- relevant documents
- retrieval model
- information retrieval
- test collection
- text retrieval
- retrieved documents
- automatic query expansion
- improving search
- relevance feedback
- query terms
- semantic similarity
- probabilistic model
- original query
- biomedical information retrieval
- ranked retrieval
- semantic information
- natural language
- interactive query expansion
- feature selection
- short queries
- relevance model
- semantic relationships
- context dependent
- decision trees
- document retrieval