Keyphrases
- query expansion
- information retrieval systems
- information retrieval
- language model
- pseudo relevance feedback
- relevance feedback
- retrieval effectiveness
- relevant documents
- text retrieval
- language modeling
- retrieval model
- automatic query expansion
- improving search
- query terms
- named entities
- retrieved documents
- original query
- ad hoc retrieval
- query specific
- trec genomics track
- web corpora
- query expansion methods
- biomedical information retrieval
- cross lingual
- vocabulary mismatch
- interactive query expansion
- model for information retrieval
- ranked retrieval
- pseudo feedback
- document retrieval
- web search
- digital libraries
- search engine