應(yīng)yl7703永利官網(wǎng)鄧偉華教授邀請，中國科學(xué)院數(shù)學(xué)與系統(tǒng)科學(xué)研究院高斌副研究員將于2023年3月24日-26日訪問蘭州大學(xué)，期間舉辦專題學(xué)術(shù)報(bào)告，歡迎全校師生參加。

報(bào)告題目: Optimization on matrix manifolds: a computational point of view

時(shí) 間：3月26日(星期日)11：30-12：30

地 點(diǎn)：理工樓 631

報(bào)告摘要：Over the past few decades, optimization on manifolds has received increasing interest in research and engineering, recognized as a wide, beautiful and effective generalization of unconstrained optimization. These problems arise often in engineering applications, including in machine learning, computer vision, signal processing, dynamical systems and scientific computing. Involving a Riemannian structure on smooth manifolds is sufficient to define gradients and Hessians on the manifold, paving the way for optimization. Hence, we can generalize the standard algorithms from unconstrained optimization to handle the broader class of optimization over smooth manifolds. My talk is concerned with some specific manifolds including the Stiefel manifold, the symplectic Stiefel manifold, and fixed-rank manifolds. The purpose of my talk is to develop efficient algorithms for solving optimization problems on these manifolds and to study the Riemannian structure of manifolds.

歡迎廣大師生光臨!

報(bào)告人簡介

高斌，中國科學(xué)院數(shù)學(xué)與系統(tǒng)科學(xué)研究院計(jì)算數(shù)學(xué)所副研究員。2019年畢業(yè)于中國科學(xué)院數(shù)學(xué)與系統(tǒng)科學(xué)研究院。曾先后赴比利時(shí)法語魯汶大學(xué)，德國明斯特大學(xué)從事博士后研究。其主要研究興趣是最優(yōu)化計(jì)算方法的理論，分析和應(yīng)用，研究內(nèi)容包括矩陣流形上的優(yōu)化算法，機(jī)器學(xué)習(xí)中的矩陣填充問題等。在SIAM系列雜志發(fā)表多篇論文。曾獲中國科學(xué)院院長特別獎、中國數(shù)學(xué)會頒發(fā)的鐘家慶數(shù)學(xué)獎。

甘肅應(yīng)用數(shù)學(xué)中心

yl7703永利官網(wǎng)

萃英學(xué)院

2023年3月22日