1 code implementation • CVPR 2022 • Hao Ni, Jingkuan Song, Xiaopeng Luo, Feng Zheng, Wen Li, Heng Tao Shen
Domain Generalizable (DG) person ReID is a challenging task which trains a model on source domains yet generalizes well on target domains.
Domain Generalization Generalizable Person Re-identification +1
no code implementations • 31 May 2020 • Liang Liu, Xiaopeng Luo
In this paper, we propose a novel accelerated stochastic gradient method with momentum, which momentum is the weighted average of previous gradients.
1 code implementation • 5 Apr 2020 • Xiaopeng Luo, Xin Xu
We propose and analyze asymptotic proximal point (APP) methods to find the global minimizer for a class of nonconvex, nonsmooth, or even discontinuous multiple minima functions.
Optimization and Control Numerical Analysis Numerical Analysis 65K05, 68Q25, 90C26, 90C56
no code implementations • 25 Feb 2020 • Xin Xu, Xiaopeng Luo
In this paper we consider the question of whether it is possible to apply a gradient averaging strategy to improve on the sublinear convergence rates without any increase in storage.
no code implementations • 31 Dec 2019 • Xiaopeng Luo, Xin Xu
In this paper we propose stochastic gradient-free methods and accelerated methods with momentum for solving stochastic optimization problems.
1 code implementation • 3 Sep 2019 • Xiaopeng Luo, Xin Xu
Motivated by the grid search method and Bayesian optimization, we introduce the concept of contractibility and its applications in model-based optimization.
Optimization and Control Computational Complexity Numerical Analysis Numerical Analysis 65K05, 68Q15, 90C26, 90C56
no code implementations • 18 Feb 2019 • Xin Xu, Xiaopeng Luo
The hierarchical parallel SRT algorithm is based on both tree decomposition and adaptive radial basis function (RBF) explorations, whereby for each child a sparse and proper RBF refinement is added to the approximation by minimizing the norm of the residual inherited from its parent.
1 code implementation • 9 Dec 2018 • Xiaopeng Luo
This paper establishes a strict mathematical relationship between an arbitrary continuous function on a compact set and its global minima, like the well-known first order optimality condition for convex and differentiable functions.