Task-driven common subspace learning based semantic feature extraction for acoustic event recognition.
Qiuying ShiShiwen DengJiqing HanPublished in: Expert Syst. Appl. (2023)
Keyphrases
- subspace learning
- event recognition
- feature extraction
- dimensionality reduction
- manifold learning
- video event
- principal component analysis
- face recognition
- event detection
- video analysis
- data representation
- multi camera
- low dimensional
- sparse coding
- sparse representation
- activity recognition
- pattern recognition
- feature vectors
- video surveillance
- feature space
- dimension reduction
- feature selection
- discriminant analysis
- high dimensional data
- data points
- learning algorithm
- image classification
- semi supervised
- linear discriminant analysis
- natural images
- signal processing
- xml documents
- training set
- object recognition