TAG term weight-based N gram Thesaurus generation for query expansion in information retrieval application.
S. G. ShailaA. VadivelPublished in: J. Inf. Sci. (2015)
Keyphrases
- query expansion
- language model
- n gram
- language modeling
- information retrieval
- information retrieval systems
- query terms
- expansion terms
- retrieval effectiveness
- retrieval model
- language modelling
- term selection
- pseudo relevance feedback
- relevance feedback
- relevant documents
- language modeling framework
- document retrieval
- text retrieval
- probabilistic model
- ad hoc retrieval
- query expansion methods
- relevance model
- probabilistic retrieval model
- retrieved documents
- document frequency
- passage retrieval
- automatic query expansion
- document representation
- vector space model
- test collection
- tf idf
- term weighting
- document ranking
- text classification
- bag of words
- knowledge discovery
- biomedical information retrieval
- information extraction
- smoothing methods
- out of vocabulary
- term dependencies
- retrieval systems
- information access
- word segmentation
- query translation