A Pólya Urn Document Language Model for Improved Information Retrieval.
Ronan CumminsJiaul H. PaikYuanhua LvPublished in: ACM Trans. Inf. Syst. (2015)
Keyphrases
- language model
- information retrieval
- document retrieval
- document length
- language modeling
- vector space model
- document ranking
- retrieval model
- query terms
- ad hoc information retrieval
- document representation
- language modeling framework
- n gram
- test collection
- language modeling approaches
- query expansion
- passage retrieval
- information retrieval systems
- document collections
- document language models
- retrieval systems
- relevant documents
- mixture model
- document level
- probabilistic model
- language modelling
- query specific
- pseudo feedback
- smoothing methods
- probabilistic retrieval models
- language model for information retrieval
- term weighting
- information extraction
- relevance model
- word clouds
- tf idf
- language models for information retrieval
- text mining
- okapi bm
- human relevance judgments
- pseudo relevance feedback
- translation model
- context sensitive
- text retrieval
- term dependencies
- retrieved documents
- text documents
- question answering
- jelinek mercer
- search engine
- term weights
- ir models
- structured documents
- document images
- web documents