Acceleration of rank-constrained spatial covariance matrix estimation for blind speech extraction.
Yuki KuboNorihiro TakamuneDaichi KitamuraHiroshi SaruwatariPublished in: CoRR (2019)
Keyphrases
- covariance matrix
- estimation error
- covariance matrices
- principal component analysis
- sample size
- correlation matrix
- pseudo inverse
- eigendecomposition
- gaussian mixture
- objective function
- mahalanobis distance
- positive definite
- eigenvalues and eigenvectors
- geometrical interpretation
- speech signal
- density estimation
- feature vectors
- speech recognition
- model selection
- transformation matrix
- machine learning