Keyphrases
- feature extraction
- graph representation
- graph theory
- random walk
- benchmark datasets
- graph data
- face recognition
- graph matching
- preprocessing
- pattern classification
- dimension reduction
- data sets
- discriminant analysis
- machine learning
- feature vectors
- image processing
- structured data
- graph theoretic
- spanning tree
- feature representation
- graph structure
- gabor filters
- pattern recognition
- directed graph
- feature space
- weighted graph
- graph model
- texture analysis
- image classification
- frequency domain
- database
- image preprocessing