Multichannel Signal Separation Combining Directional Clustering and Nonnegative Matrix Factorization with Spectrogram Restoration.
Daichi KitamuraHiroshi SaruwatariHirokazu KameokaYu TakahashiKazunobu KondoSatoshi NakamuraPublished in: IEEE ACM Trans. Audio Speech Lang. Process. (2015)
Keyphrases
- nonnegative matrix factorization
- single channel
- nonnegative matrix
- probabilistic latent semantic indexing
- spectral clustering
- data representation
- negative matrix factorization
- matrix factorization
- wiener filter
- multi channel
- image restoration
- signal reconstruction
- document clustering
- frequency domain
- least squares
- data matrix
- signal processing
- data clustering
- matrix factorisation
- image processing
- principal component analysis
- clustering method
- short time fourier transform
- sound source
- k means
- co occurrence
- pattern recognition
- original data
- unsupervised learning
- objective function
- multiscale
- clustering algorithm