Acceleration of rank-constrained spatial covariance matrix estimation for blind speech extraction.
Yuki KuboNorihiro TakamuneDaichi KitamuraHiroshi SaruwatariPublished in: APSIPA (2019)
Keyphrases
- covariance matrix
- estimation error
- covariance matrices
- principal component analysis
- positive definite
- sample size
- gaussian mixture
- geometrical interpretation
- speech recognition
- correlation matrix
- mahalanobis distance
- maximum likelihood estimation
- face recognition
- speech signal
- computational complexity
- objective function
- multivariate gaussian
- eigenvalues and eigenvectors
- machine learning
- eigendecomposition
- pseudo inverse
- symmetric matrix