New error bounds for SDE-based sampling algorithms beyond log-concavity
主 讲 人 :王小捷 教授
活动时间:04月02日10时30分
地 点 :理科群1号楼D311室
讲座内容:
Generating samples from a high dimensional probability distribution is a fundamental task with wide-ranging applications in the area of scientific computing, statistics and machine learning. This talk will focus on high dimensional sampling algorithms based on time discretizations of stochastic differential equations (SDEs). New error bounds will be then provided for the considered sampling algorithms without log-concavity, where the convergence rate and the dimension dependence are explicitly revealed. Numerical experiments will be finally presented to corroborate the theoretical findings.
主讲人介绍:
王小捷,中南大学数学与统计学院教授、博士生导师。本硕博就读于中南大学,2012年获理学博士学位。研究方向为随机微分方程数值方法、数据科学和人工智能中的高维分布采样算法及扩散生成模型等。在上述领域取得一系列研究成果,论文发表在SIAM Journal on Numerical Analysis、Mathematics of Computation、SIAM Journal on Scientific Computing、IMA Journal of Numerical Analysis、Journal of Computational Physics、Stochastic Processes and their Applications、Automatica等计算数学、概率论、自动化领域的权威刊物以及机器学习顶会ICML。主持国家自然科学基金面上项目多项以及湖南省自然科学基金杰出青年项目等多项科研项目。
