Optimization of learned dictionary for sparse coding in speech processing.
Yongjun HeGuanglu SunJiqing HanPublished in: Neurocomputing (2016)
Keyphrases
- sparse coding
- learned dictionary
- speech processing
- sparse representation
- signal processing
- natural images
- compressive sensing
- linear combination
- image classification
- speech recognition
- image patches
- unsupervised learning
- natural language processing
- generative model
- image representation
- visual words
- multiscale
- feature space
- image processing
- mixture model
- neural network
- supervised learning
- object recognition
- pattern recognition
- data mining