A topic classification system based on parametric trajectory mixture models.
William BelfieldHerbert GishPublished in: INTERSPEECH (2003)
Keyphrases
- mixture model
- density estimation
- unsupervised learning
- gaussian mixture model
- model selection
- em algorithm
- expectation maximization
- decision trees
- mixture modeling
- pattern recognition
- support vector machine
- text classification
- feature vectors
- machine learning
- image classification
- maximum likelihood
- probabilistic model
- feature extraction
- finite mixture models
- generative model
- finite mixtures
- subspace analysis
- reinforcement learning
- training set
- language model
- supervised learning
- background subtraction
- covariance matrix
- model based clustering