Improved language modelling through better language model evaluation measures.
Philip ClarksonTony RobinsonPublished in: Comput. Speech Lang. (2001)
Keyphrases
- language modelling
- language model
- evaluation measures
- n gram
- language modeling
- ir models
- learning to rank
- precision and recall
- retrieval systems
- test collection
- document retrieval
- information retrieval
- probabilistic model
- document ranking
- query expansion
- retrieval model
- ranked list
- context sensitive
- relevance model
- pseudo relevance feedback
- language models for information retrieval
- relevance judgments
- evaluation metrics
- vector space model
- ad hoc retrieval
- divergence from randomness
- average precision
- document representation
- ranking functions
- query terms
- supervised learning
- keywords