Refining Sparse Coding Sub-word Unit Inventories with Lattice-constrained Viterbi Training.
Wiehan AgenbagThomas NieslerPublished in: SLTU (2016)
Keyphrases
- sparse coding
- dictionary learning
- natural images
- sparse representation
- image classification
- linear combination
- unsupervised learning
- sparse codes
- discriminative power
- image patches
- image representation
- generative model
- feature space
- hidden markov models
- single image super resolution
- n gram
- visual words
- object category recognition
- high dimensional
- object recognition
- supervised learning
- test images
- nearest neighbor
- training set
- deep belief networks