2026年随机计算及相关领域前沿进展暑期学校系列学术报告 | Machine learning for inverse scattering problems
报 告 人: 张凯
所在单位: 吉林大学
报告地点: 吉林大学正新楼106
报告时间: 2026-07-20 16:00:00
报告简介:

In this presentation, we consider artificial neural networks for inverse scattering problems. As a working model, we consider the inverse problem of recovering a scattering object from the (possibly) limited-aperture radar cross section (RCS) data collected corresponding to a single incident field. This nonlinear and ill-posed inverse problem is practically important and highly challenging due to the severe lack of information. From a geometrical and physical point of view, the low-frequency data should be able to resolve the unique identifiability issue, but meanwhile lose the resolution. On the other hand, the machine learning can be used to break through the resolution limit. By combining the two perspectives, we develop a fully connected neural network (FCNN) for the inverse problem. Extensive numerical results show that the proposed method can produce stunning reconstructions. The proposed strategy can be extended to tackling other inverse scattering problems with limited measurement information.

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主讲人简介:
张凯教授1999年本科毕业于吉林大学数学系,2006年获吉林大学博士学位,博士论文被评为吉林省优秀博士论文,2008年获得香港中文大学联合培养博士学位,2008-2010年赴密歇根州立大学开展博士后研究。2020年被评为吉林大学唐匡特聘教授。张凯教授先后赴伊利诺伊州立大学,香港城市大学等开展合作研究。主要从事随机麦克斯韦方程和随机声波方程,机器学习求解反散射问题的研究。先后主持国家自然科学基金等项目13项,发表论文68篇。