Semi-supervised convex nonnegative matrix factorizations with graph regularized for image representation.
Guopeng LiXinyu ZhangSiyi ZhengDeyi LiPublished in: Neurocomputing (2017)
Keyphrases
- image representation
- sparse non negative
- sparse coding
- matrix factorization
- semi supervised
- nonnegative matrix factorization
- image classification
- multiscale
- dictionary learning
- bregman divergences
- bag of words
- low rank
- tensor factorization
- semi supervised classification
- object recognition
- image content
- sparse representation
- least squares
- factor matrices
- quadtree
- collaborative filtering
- semi supervised learning
- sparsity constraints
- pairwise
- negative matrix factorization
- visual words
- feature space
- image retrieval
- data matrix
- unsupervised learning
- representation scheme
- unlabeled data
- recommender systems
- visual features
- convex optimization
- objective function
- active learning
- matrix multiplication
- supervised learning
- bag of features
- machine learning
- matrix completion
- data representation
- labeled data
- text classification
- image features