【学术讲座】A Joint Matrix Minimization Approach for Seismic Wavefield Recovery

2019年09月12日 10:42  


报告人:王丽平教授

报告时间:2019.9.21(星期六)上午9:30-10:20

报告地点:理学院楼214会议室

邀请人:白建超、聂玉峰

报告题目:A Joint Matrix Minimization Approach for Seismic Wavefield Recovery

报告摘要:Reconstruction of the seismic wavefield from sub-sampled data is an important problem in seismic image processing; this is partly due to limitations of the observations which usually yield incomplete data. This paper proposes a joint matrix minimization model to recover the seismic wavefield. Employing matrix instead of vector as weight variable to express all the signals simultaneously, the new model takes the interrelation of the sampled observations into account. For solving the involved matrix optimization problem, an efficient unified algorithm is developed and the convergence analysis is demonstrated. Numerical experiments on synthetic and field data examples exhibit the efficient performance of joint technique.

报告人简介:王丽平,女,南京航空航天大学教授,运筹学、计算数学专业博士生导师。分别于2001年、2004年在南京大学、中科院计算数学所获得硕士、博士学位(师从袁亚湘院士),之后入职南京航空航天大学工作至今。主要研究领域为最优化理论与算法,数值优化方法在模式识别、人工智能和地球物理等领域的应用。以第一作者在Computational Optimization and Applications, Pattern Recognition, SCIENCE CHINA Mathematics, Optimization Methods and Software, Scientific Reports等国际学术期刊发表论文二十余篇,先后主持国家自然科学基金5项。

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