There are 2 repositories under instance-ranking topic.
The code for Principal Sample Analysis (PSA) for prototype selection and instance ranking
The code for prototype selection and instance ranking using matrix decomposition and subspace learning
The code for Curvature Anomaly Detection (CAD), kernel CAD, inverse CAD (iCAD), and kernel iCAD for anomaly detection and prototype selection. It uses the theory of Polyhedron Curvature or angular defect of polyhedron.