A Sparse Target Matrix Generation Based Unsupervised Feature Learning Algorithm for Image Classification.
Dan ZhaoBaolong GuoYunyi YanPublished in: KSII Trans. Internet Inf. Syst. (2018)
Keyphrases
- image classification
- learning algorithm
- image features
- sparse representation
- sparse coding
- supervised learning
- coefficient matrix
- image representation
- sparse matrix
- spatial pooling
- feature extraction
- bag of words
- spatial pyramid
- feature values
- reinforcement learning
- training data
- unsupervised learning
- positive semi definite
- spatial pyramid matching
- multi label
- singular value decomposition
- machine learning
- machine learning algorithms
- training examples
- semi supervised
- active learning
- learning problems
- dictionary learning
- visual codebook
- learning tasks
- visual words
- binary matrices