Lorentzian geometry

Feature Extraction by Learning Lorentzian Metric Tensor and Its Extensions

We develop a supervised dimensionality reduction method, called Lorentzian discriminant projection(LDP), for feature extraction and classification

Lorentzian Discriminant Projection and Its Applications

We develops a supervised dimensionality reduction method, Lorentzian Discriminant Projection (LDP), for discriminant analysis and classification. Our method represents the structures of sample data by a manifold, which is furnished with a Lorentzian metric tensor.