Unsupervised learning of sparse and shift-invariant decompositions of polyphonic music.
Thomas BlumensathMike E. DaviesPublished in: ICASSP (5) (2004)
Keyphrases
- shift invariant
- unsupervised learning
- sparse coding
- polyphonic music
- supervised learning
- semi supervised
- machine learning
- feature selection
- object recognition
- dimensionality reduction
- natural images
- sparse representation
- wavelet domain
- content based retrieval
- model selection
- edge preserving
- rotation invariant
- text classification
- multiscale
- learning algorithm