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,杭州电子科技大学喻高航教授将于2023年3月11日线上讲学,欢迎全校师生踊跃参加,报告具体安排如下:
报告题目:Practical Sketching Algorithms for Low-Rank Tucker Approximation of Large Tensors
报告摘要:Low-rank approximation of tensors has been widely used in high-dimensional data analysis. It usually involves singular value decomposition (SVD) of large-scale matrices with high computational complexity. Sketching is an effective data compression and dimensionality reduction technique applied to the low-rank approximation of large matrices. This talk presents two practical randomized algorithms for low-rank Tucker approximation of large tensors based on sketching and power scheme, with a rigorous error-bound analysis. Numerical experiments on synthetic and real-world tensor data demonstrate the competitive performance of the proposed algorithms.
主讲人:喻高航教授
时间:2023年3月11日(周六)上午8:30-10:30
地点:腾讯会议号:640873981
报告人简介:
喻高航,杭州电子科技大学教授,博士,博士生导师,主要从事张量数据分析、大规模优化计算及其在机器学习、图像处理与医学影像中的应用研究。先后在SIAM Journal on Imaging Sciences, International Journal of Robust and Nonlinear Control,IEEE Signal Processing Letters,Journal of Mathematical Imaging and Vision等国际期刊上发表40余篇SCI论文,先后主持5项国家自然科学基金、1项教育部新世纪优秀人才支持计划项目和1项浙江省自然科学基金重大项目,有多篇论文入选ESI高被引榜单。自2013年起任国际学术期刊Statistics, Optimization and Information Computing执行编委(Coordinating Editor)。
