Sparse Coding for Key Node Selection over Networks.
Ye XuDaniel N. RockmorePublished in: Discovery Science (2014)
Keyphrases
- sparse coding
- dictionary learning
- natural images
- sparse representation
- image classification
- linear combination
- unsupervised learning
- node selection
- feature space
- generative model
- image representation
- visual words
- wireless sensor networks
- high dimensional
- image patches
- co occurrence
- active learning
- multiscale
- network structure
- image segmentation
- energy consumption
- feature extraction
- keyword search
- image processing