A discriminative language model with pseudo-negative samples.
Daisuke OkanoharaJun'ichi TsujiiPublished in: ACL (2007)
Keyphrases
- language model
- positive samples
- negative samples
- language modeling
- n gram
- probabilistic model
- negative feedback
- information retrieval
- context sensitive
- retrieval model
- negative examples
- test collection
- query expansion
- mixture model
- positive and negative
- translation model
- smoothing methods
- semi supervised
- support vector machine
- ad hoc information retrieval
- feature selection
- positive examples
- unsupervised learning
- sample set
- model selection
- multi class
- bayesian networks
- training data