A Study of Smoothing Methods for Language Models Applied to Ad Hoc Information Retrieval.
ChengXiang ZhaiJohn D. LaffertyPublished in: SIGIR (2001)
Keyphrases
- language model
- ad hoc information retrieval
- smoothing methods
- language modeling
- probabilistic model
- n gram
- document retrieval
- retrieval model
- information retrieval
- language models for information retrieval
- query expansion
- test collection
- language modelling
- document length
- language modeling approaches
- query terms
- document ranking
- query specific
- translation model
- statistical language models
- inter document similarities
- pseudo relevance feedback
- relevance model
- document representation
- natural language processing
- active learning