Experiments with N-Gram Prefixes on a Multinomial Language Model versus Lucene's Off-the-Shelf Ranking Scheme and Rocchio Query Expansion (TEL@CLEF Monolingual Task).
Jorge MachadoBruno MartinsJosé BorbinhaPublished in: CLEF (1) (2009)
Keyphrases
- query expansion
- language model
- ranking scheme
- n gram
- probabilistic model
- language modeling
- ad hoc retrieval
- document retrieval
- text classification
- information retrieval
- retrieval effectiveness
- retrieval model
- text retrieval
- language modelling
- passage retrieval
- pseudo relevance feedback
- language independent
- cross lingual
- relevant documents
- bag of words
- test collection
- query translation
- vector space model
- document ranking
- text categorization
- query terms
- word segmentation
- relevance model
- query specific
- naive bayes
- translation model
- relevance feedback
- short queries
- query processing
- bayesian networks
- information retrieval systems
- retrieved documents
- ranking functions