Evaluation of dictionary for sparse coding in speech processing.
Yongjun HeGuanglu SunGuibin ZhengJiqing HanPublished in: INTERSPEECH (2014)
Keyphrases
- sparse coding
- sparse representation
- speech processing
- signal processing
- dictionary learning
- sparse codes
- image classification
- natural images
- speech recognition
- linear combination
- object category recognition
- image representation
- unsupervised learning
- discriminative dictionary
- generative model
- multimedia systems
- high dimensional data
- high dimensional
- object recognition
- dimensionality reduction
- natural language processing
- pattern recognition
- multiscale
- image patches
- artificial intelligence
- computer vision
- feature selection
- speaker identification
- test images
- feature space
- neural network