A Revisit of Query Expansion with Different Semantic Levels.
Ce ZhangBin CuiGao CongYu-Jing WangPublished in: DASFAA (2009)
Keyphrases
- query expansion
- latent semantic
- information retrieval systems
- language model
- retrieval effectiveness
- information retrieval
- language modeling
- text retrieval
- pseudo relevance feedback
- relevance feedback
- relevant documents
- automatic query expansion
- improving search
- retrieval model
- ranked retrieval
- semantic information
- original query
- query expansion methods
- biomedical information retrieval
- trec genomics track
- relevance model
- query specific
- semantically related
- vocabulary mismatch
- query terms
- natural language
- ad hoc retrieval
- retrieved documents
- semantic similarity
- document retrieval