Multichannel Non-Negative Matrix Factorization Using Banded Spatial Covariance Matrices in Wavenumber Domain.
Yuki MitsufujiStefan UhlichNorihiro TakamuneDaichi KitamuraShoichi KoyamaHiroshi SaruwatariPublished in: IEEE ACM Trans. Audio Speech Lang. Process. (2020)
Keyphrases
- negative matrix factorization
- covariance matrices
- covariance matrix
- principal component analysis
- maximum likelihood
- distance measure
- gaussian distribution
- document clustering
- gaussian mixture model
- spectral clustering
- matrix factorization
- vector space
- sparse representation
- gaussian mixture
- feature vectors
- training data
- linear classifiers
- object recognition