Keyphrases
- event driven
- query expansion
- information retrieval systems
- retrieval effectiveness
- language model
- text retrieval
- language modeling
- relevant documents
- relevance feedback
- information retrieval
- pseudo relevance feedback
- query expansion methods
- retrieval model
- markup language
- vocabulary mismatch
- ad hoc retrieval
- model for information retrieval
- improving search
- trec genomics track
- original query
- automatic query expansion
- web corpora
- retrieved documents
- short queries
- initial query
- query specific
- real time
- query terms
- document retrieval
- query disambiguation
- search engine
- probabilistic retrieval model