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关于江苏大学朱红副教授来校讲学的预告

作者: 时间:2025-06-12 点击数:10

应数学与计算科学学院、广西应用数学中心(桂林电子科技大学)及广西高校数据分析与计算重点实验室邀请,江苏大学朱红副教授将于2025616日来校讲学,欢迎全校师生踊跃参加,报告具体安排如下:

报告题目:Inexact Proximal Newton Method for Nonconvex Composite Minimization

主讲人江苏大学朱红教授

时间2025616日(周一)上午10:50-

地点:花江慧谷4号楼3310报告厅

报告摘要:

This report presents an inexact proximal Newton method along with its stochastic block-coordinate variant for solving nonconvex composite optimization problems. For the deterministic algorithm, we establish: (i) a global convergence rate of order O(k^{-1/2}) with respect to the minimal norm of the KKT residual mapping, and (ii) a local superlinear convergence rate for the sequence generated by the algorithm under the assumption of higher-order metric q-subregularity. For the stochastic variant, we prove that, under appropriate sampling conditions, the fundamental convergence guarantees align with those of the deterministic case. Both versions of the method incorporate a unit step size combined with the Lipschitz constant of the gradient of the smooth component. In addition, we present algorithms for both versions that adopt a unit step size in combination with the Lipschitz constant of the gradient of the smooth component.

主讲人简介:

朱红,江苏大学数学科学学院副教授,硕士生导师。主要研究兴趣包括二阶优化算法对偶四元数理论及应用。2016年博士毕业于香港浸会大学先后在新加坡国立大学加拿大西门莎菲大学等学校访问。主持国家自然科学基金面上项目1项,国家自然科学基金青年基金项目1项,江苏省自然科学基金青年基金项目1项。先后SIAM J. Optim., SIAM J. Image. Sci.,IEEE Trans. Image. Proc., Comput. Optim. Appl., J. Sci. Comput., Inverse Prob.等期刊发表论文20余篇。

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