De-Run Zhou

Centered Weak Discrete Riemannian Gradients: A Unified Framework for Riemannian Optimization

We introduce the centered weak discrete Riemannian gradient (c-wDRG) framework for the unified analysis of optimization methods on Riemannian manifolds. The framework uses a center point to represent the relevant logarithmic differences in a common tangent space and covers Riemannian steepest descent, proximal point, p...