An Unsupervised Feature Extraction Approach Based on Self-Expression.
Hongchun QuYangqi ZhengLin LiFei GuoPublished in: Big Data (2023)
Keyphrases
- feature extraction
- discriminant projection
- unsupervised learning
- preprocessing
- discriminant analysis
- semi supervised
- image classification
- frequency domain
- dimension reduction
- expression recognition
- dimensionality reduction
- extracted features
- completely unsupervised
- support vector machine svm
- facial expression recognition
- texture analysis
- pattern classification
- gabor filters
- feature vectors
- feature fusion
- unsupervised manner
- supervised classification
- feature selection
- linear discriminant analysis
- data driven
- wavelet transform
- face recognition
- extracting features
- principal component analysis
- supervised learning
- feature extraction and classification
- image preprocessing
- linear feature extraction
- image processing