Direct Log-Density Gradient Estimation with Gaussian Mixture Models and Its Application to Clustering.
Qi ZhangHiroaki SasakiKazushi IkedaPublished in: IEICE Trans. Inf. Syst. (2019)
Keyphrases
- gaussian mixture model
- gradient estimation
- mixture model
- probability density
- density estimation
- bayesian information criterion
- feature vectors
- k means
- speaker recognition
- clustering algorithm
- unsupervised learning
- em algorithm
- variance reduction
- expectation maximization
- maximum likelihood
- probability density function
- covariance matrices
- gaussian distribution
- density function
- feature space
- speaker identification
- sample size
- markov random field
- data points
- mixture modeling
- computer vision