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澳大利亚 Wollongong大学高级讲师王雷学术报告通知
作者:mlclab 来源:机器学习与认知实验室 阅读次数: 74808 发表日期: 2012-9-21 21:59:26

澳大利亚卧龙岗大学王雷讲师讲座通知

 

题目: Developing Advanced Learning Algorithms for High-dimensional Data

讲座人: Dr. Lei Wang (University of Wollongong, Australia)  

讲座时间:924号下午200400

讲座地点:田北楼302

Abstract:

The last decade has witnessed an explosion of the number of features in many fields, making learning with high-dimensional data a critical task of machine learning. In this talk, I will present my research work on kernel-based learning, feature and model selection, and their applications to data classification and analysis. The first part of the talk presents a kernel-based class separability measure for supervised learning. The intrinsic relationship of this measure to the radius-margin bound and the Kernel Fisher Discriminant Analysis is analyzed. Through applications to model selection, feature selection, and feature combination of high-dimensional data, the advantages of this measure on computational efficiency and robustness are demonstrated. The second part of this talk shows a similarity-preserving feature selection framework. Important features are identified by a multiple-output regression problem with composite-norm constraint that can be efficiently solved for high-dimensional data. This framework not only unifies supervised and unsupervised feature selection, but also naturally handles the feature redundancy problem in existing methods.

Bio:

Lei Wang received the B.Eng degree and the M.Eng degree from Southeast University, China in 1996 and 1999, respectively, and the PhD degree from School of EEE of Nanyang Technological University, Singapore in 2004. He is now a Senior Lecturer of Faculty of Informatics of University of Wollongong. Lei Wang was awarded the Australian Post-doctoral Fellowship by Australian Research Council in 2007 and the Early Career Researcher Award by Australian Academy of Science in 2009. His research interests include machine learning, pattern recognition, and computer vision. Lei Wang has published more than seventy peer-reviewed papers, including those on highly regarded journals and conferences such as IEEE TPAMI, IEEE TNN, CVPR, ICCV and ECCV, etc. He is the Area Chair of Pacific-Rim Symposium on Image and Video Technology in 2010, 2011 and 2013, and has been the Technical Program Committee member of 20+ international conferences and workshops. Lei Wang is also the regular reviewer of 20+ international journals, including the top-ranked IEEE TPAMI, IEEE TNN and IEEE TKDE. He is a Senior member of IEEE.  

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