活动时间:2025-10-31 16:00
活动地点:2号学院楼2432
主讲人:张希承
主讲人中文简介:
张希承教授,北京理工大学手机赌博游戏 院长。2010年入选教育部“新世纪优秀人才支持计划,2013年获国家自然科学基金杰出青年项目,2016年获教育部国家高层次人才特聘教授。张希承教授一直从事随机分析及其相关领域问题研究,研究兴趣主要集中于非光滑随机流、随机微分方程、Levy过程与非局部算子分析、热核估计、动理学方程以及与随机方程的联系等方面。迄今,他已在概率和方程方向的顶级刊物上发表学术论文一百余篇,并先后主持多项国家自然科学基金项目。
活动内容摘要:
We propose a novel zeroth-order optimization algorithm based on an efficient sampling strategy. Under mild global regularity conditions on the objective function, we establish non-asymptotic convergence rates for the proposed method. Comprehensive numerical experiments demonstrate the algorithm's effectiveness, highlighting three key attributes: (i) Scalability: consistent performance in high-dimensional settings (exceeding 100 dimensions); (ii) Versatility: robust convergence across a diverse suite of benchmark functions, including Schwefel, Rosenbrock, Ackley, Griewank, Lévy, Rastrigin, and Weierstrass; and (iii) Robustness to discontinuities: reliable performance on non-smooth and discontinuous landscapes. These results illustrate the method's strong potential for black-box optimization in complex, real-world scenarios.
主持人:张振中
