报告题目:Imbalanced Data Learning: Always Needed?
报告人: 张晓明教授 香港浸会大学
报告时间: 2023年3月24日下午14:00-15:00
报告地点:龙洞校区行政楼610
主持人:辜方清
Abstract: In many practical problems, the number of data forming difference classes can be quite imbalanced, which could make the performance of the most machine learning methods become deteriorate to a certain degree. In general, the problem of learning from imbalanced data is nontrivial and challenging in the fields of machine learning and data science, which has attracted growing attentions in recent years. In this talk, we will first introduce the class imbalanced learning and its related techniques. Then, whereas the class imbalance is quite common from the practical perspective, we will attempt to address the problem naturally arisen: When should such a class imbalance be taken into account in the machine learning tasks? Furthermore, considering the unavailability of class labels in some applications, this talk will also present our recent work on imbalanced data clustering in an unsupervised learning environment. Lastly, some challenges in this field will be introduced.
简介: 张晓明(CHEUNG, Yiu-ming)为香港浸会大学(浸大)人工智能讲席教授、浸大深圳研究院院长以及计算和理论科学研究所副所长,是IEEE Fellow、AAAS Fellow、IET Fellow 以及英国计算机学会Fellow,教育部长江学者(讲座教授),列入2020及2021年史丹福大学所发表的人工智能与图像处理专业领域世界顶尖科学家排名前1%。张教授是IEEE计算智能学会香港分会始创者及前任主席, IEEE计算机学会智能信息学委员会(TCII)现任主席。张晓明教授长期从事人工智能、视觉计算、模式识别及函数优化等研究,在相关国际著名期刊及学术会议上,如IEEE Transactions on Pattern Analysis and Machine Intelligence,IEEE Transactions on Information Forensics and Security, IEEE Transactions on Image Processing,IEEE Transactions on Knowledge and Data Engineering,IEEE Transactions on Neural Networks,IEEE Transactions on Circuits and Systems for Video Technology,CVPR, IJCAI, AAAI等已发表论文逾250 篇,其中三篇合著论文被选为《ESI高被引论文》。张教授曾多次获国际会议最佳论文奖,以及WI-IAT’2020最佳理论论文奖。此外,张教授于2020年获选为IEEE 计算智能学会Distinguished Lecturer。他已负责主持及承担包括香港研究资助局(RGC)、国家自然科学基金(NSFC)以及NSFC-RGC联合基金等科研项目三十余项。张教授作为第一发明人现拥有三项发明专利。曾于2017年在瑞士日内瓦举行的第45届日内瓦国际发明展上荣获计算机科学组别优异金奖(即金奖中的最高级别)及瑞士汽车会大奖二项国际大奖,并获2017年第七届香港创新科技成就大奖香港创新发明奖金牌。此外,于2018年再次荣获第46届日内瓦国际发明展评判嘉许特别金奖(即金奖中的最高级别)以及罗马尼亚优异奖。他曾担任包括IJCAI, ACML, ICIP, ICPR, ICDM, WI 在内的多个国际著名会议的程序委员会主席,组织委员会主席,领域主席等。张教授是IEEE智能计算学会Fellow委员会评委,香港研究资助局优配研究金工程学科评委及优质教育基金评审专家,是深圳市科技创新委员会评委。他担任若干国际期刊的副主编,如: IEEE Transactions on Neural Networks and Learning Systems (2014-2020), IEEE Transactions on Cybernetics, IEEE Transactions on Emerging Topics in Computational Intelligence, IEEE Transactions on Cognitive and Developmental Systems, Pattern Recognition以及Neurocomputing等。