Non-stationary signal feature characterization using adaptive dictionaries and non-negative matrix factorization.
Mehrnaz ShokrollahiSridhar KrishnanPublished in: Signal Image Video Process. (2016)
Keyphrases
- non stationary
- negative matrix factorization
- adaptive algorithms
- sparse representation
- blind source separation
- matrix factorization
- nonnegative matrix factorization
- white noise
- document clustering
- principal component analysis
- speech signal
- feature vectors
- image features
- sparse coding
- biomedical signals
- empirical mode decomposition
- signal processing
- image classification
- feature extraction
- face recognition
- machine learning