学术信息

青年教授讲坛(总第166期)

发布时间:2019-12-03浏览次数:1930发布者:付春兰来源:南京航空航天大学

题目:A Joint Matrix Minimization Approach for Pattern Recognition  

报告人:王丽平 教授  (理学院)

时间:201912514:00-15:00

地点:将军路校区理学院547

承办单位:南航青联会、理学院、校科协

报告人简介:

王丽平,女,山东菏泽人。2004年毕业于中国科学院数学与系统科学研究院,获博士学位,同年入职南航理学院工作至今。2009.2-2010.2在巴西巴拉纳联邦大学完成博士后项目,201311月和20178月两次访问俄罗斯科学院计算中心,20175-6月访问香港中文大学系统工程与工程管理学系,2017.10-2018.10在美国路易斯安娜州立大学科学计算中心做公费访问学者。主要研究方向为最优化理论与方法,数值优化算法在模式识别、地球物理和医学领域的应用等。以第一/通讯作者发表论文三十余篇,其中SCI/EI检索论文二十篇。自2012年起担任中国运筹学会理事,先后主持国家自然科学基金5项,已完成4项,在研1项。

报告摘要:

In this talk, a kind of pseudo matrix norm with  is defined which is thought to be a joint generalization of vector norm  and matrix norm . The joint matrix minimization model is often used in pattern recognition to take account of multiple features or samples simultaneously. When , the matrix minimization problem with -norm can find a joint and sparser solution than traditional measurements. To efficiently solve the related matrix minimization problem, a unified algorithm is proposed and its convergence is also demonstrated for a range of . Typical values of  are employed for feature selection and collective image recognition. Extensive experiments on public data confirm the outperformance of joint matrix minimization approach over the state-of-the-arts.

Keywords: Joint matrix minimization; Feature selection; Collective image recognition; Numerical convergence