Gamma hidden Markov model as a probabilistic Nonnegative Matrix Factorization.
Nasser MohammadihaW. Bastiaan KleijnArne LeijonPublished in: EUSIPCO (2013)
Keyphrases
- hidden markov models
- nonnegative matrix factorization
- matrix factorization
- negative matrix factorization
- data representation
- mixture distributions
- latent variable models
- speech recognition
- bayesian networks
- least squares
- principal component analysis
- spectral clustering
- hidden states
- probabilistic model
- computer vision
- objective function
- text categorization
- generative model
- text mining
- image sequences
- machine learning