Language Modeling and Document Re-Ranking: Trinity Experiments at TEL@CLEF-2009.
Dong ZhouVincent P. WadePublished in: CLEF (Working Notes) (2009)
Keyphrases
- language modeling
- query expansion
- document ranking
- document length
- information retrieval
- language model
- cross lingual
- pseudo feedback
- relevance model
- query specific
- retrieved documents
- information retrieval systems
- ad hoc retrieval
- passage retrieval
- relevant documents
- expert finding
- retrieval model
- ad hoc information retrieval
- language modeling approaches
- document retrieval
- test collection
- n gram
- term weighting
- pseudo relevance feedback
- improvements in retrieval effectiveness
- query terms
- language modeling framework
- ranked list
- query topic
- expert search
- federated search
- retrieval effectiveness
- term dependencies
- cross language
- text retrieval
- ranking algorithm
- question answering
- probabilistic model
- relevance feedback
- vector space model
- retrieval systems
- document collections
- retrieval strategies
- ranking functions
- smoothing methods
- text classification
- dirichlet prior
- text mining
- image retrieval
- inter document similarities
- tf idf
- language independent
- translation model