Keyphrases
- low resolution
- label propagation
- statistical classification
- face images
- face recognition
- high resolution
- semi supervised learning
- semi supervised
- text categorization
- super resolution
- low resolution face images
- low resolution images
- community detection
- human faces
- unlabeled data
- spectral clustering
- facial expressions
- feature extraction
- labeled data
- principal component analysis
- image super resolution
- facial images
- image patches
- high quality
- class labels
- feature vectors
- sparse representation
- data analysis
- image analysis
- label information
- multi view
- computer vision
- supervised learning
- active learning
- unsupervised learning
- image data