Unsupervised language model adaptation using LDA-based mixture models and latent semantic marginals.
Md. Akmal HaidarDouglas D. O'ShaughnessyPublished in: Comput. Speech Lang. (2015)
Keyphrases
- mixture model
- language model
- probabilistic model
- language modeling
- graphical models
- query expansion
- gaussian mixture model
- n gram
- document retrieval
- unsupervised learning
- retrieval model
- information retrieval
- test collection
- vector space model
- supervised learning
- probability distribution
- semi supervised
- document representation
- dirichlet prior
- bag of words
- expectation maximization
- latent variables
- knn
- text data
- topic modeling
- smoothing methods