Unsupervised neural network based feature extraction using weak top-down constraints.
Herman KamperMicha ElsnerAren JansenSharon GoldwaterPublished in: ICASSP (2015)
Keyphrases
- feature extraction
- neural network
- discriminant projection
- image classification
- image processing
- frequency domain
- extracting features
- global constraints
- wavelet transform
- preprocessing
- high level
- dimensionality reduction
- machine learning
- linear feature extraction
- pattern recognition
- data driven
- feature vectors
- texture features
- constraint satisfaction
- constraint programming
- constrained optimization
- unsupervised learning
- linear constraints
- unsupervised manner
- feature selection
- feature fusion
- image preprocessing
- feature extractors