Query Expansion of Zero-Hit Subject Searches: Using a Thesaurus in Conjunction with NLP Techniques.
Sarantos KapidakisAnna MastoraManolis PeponakisPublished in: TPDL (2012)
Keyphrases
- query expansion
- information retrieval systems
- information retrieval
- retrieval effectiveness
- language model
- text retrieval
- language modeling
- pseudo relevance feedback
- relevance feedback
- query expansion methods
- natural language processing
- query terms
- relevant documents
- improving search
- ad hoc retrieval
- expansion terms
- retrieval model
- automatic query expansion
- latent semantic
- vocabulary mismatch
- ranked retrieval
- trec genomics track
- query translation
- wordnet
- retrieval systems
- probabilistic retrieval model