Variational approximation of long-span language models for lvcsr.
Anoop DeorasTomás MikolovStefan KombrinkMartin KarafiátSanjeev KhudanpurPublished in: ICASSP (2011)
Keyphrases
- language model
- spoken term detection
- variational approximation
- language modeling
- probabilistic model
- approximate inference
- n gram
- bayesian inference
- latent variables
- kullback leibler
- exact inference
- information retrieval
- variational inference
- mixture model
- retrieval model
- em algorithm
- document retrieval
- test collection
- query expansion
- graphical models
- broadcast news
- expectation maximization
- cluster ensemble
- bayesian networks
- vector space model
- distance measure
- machine learning
- probabilistic inference
- belief propagation
- posterior distribution
- natural language