A Polya Urn Document Language Model for Improved Information Retrieval.
Ronan CumminsJiaul Hoque PaikYuanhua LvPublished in: CoRR (2015)
Keyphrases
- language model
- information retrieval
- language modeling
- document retrieval
- document length
- vector space model
- document ranking
- query terms
- document representation
- language modeling approaches
- ad hoc information retrieval
- query expansion
- retrieval model
- passage retrieval
- language modeling framework
- relevant documents
- n gram
- document language models
- information retrieval systems
- document collections
- test collection
- retrieval systems
- language modelling
- probabilistic model
- pseudo feedback
- word clouds
- smoothing methods
- document level
- retrieved documents
- language model for information retrieval
- mixture model
- context sensitive
- tf idf
- probabilistic retrieval models
- query specific
- retrieval effectiveness
- search engine
- relevance model
- language models for information retrieval
- pseudo relevance feedback
- information extraction
- human relevance judgments
- term weighting
- ir models
- document clustering
- text documents
- question answering
- cross lingual
- document relevance
- latent semantic indexing