2016年计算机科学与技术学科系列学术报告之十八：Feature oriented Self-representation and its applications

报告题目：Feature oriented Self-representation and its applications

时  间：2016年12月7日（周三）上午10：30—12：00

地  点：信息工程学院31-904

报告摘要：

    Almost all the existing representation based classifiers represent a query sample as a linear combination of training samples, and their time and memory cost will increase rapidly with the number of training samples. We investigate the representation based classification problem from a rather different perspective in this paper, that is, we learn how each feature (i.e., each element) of a sample can be represented by the features of itself. Such a self-representation property of sample features can be readily employed for pattern classification and a novel self-representation induced classifier (SRIC) is proposed. SRIC learns a self-representation matrix for each class. Given a query sample, its self-representation residual can be computed by each of the learned self-representation matrices, and classification can then be performed by comparing these residuals. In light of the principle of SRIC, a discriminative SRIC (DSRIC) method is developed. For each class, a discriminative self-representation matrix is trained to minimize the self-representation residual of this class while representing little the features of other classes. Experimental results on different pattern recognition tasks show that DSRIC achieves comparable or superior recognition rate to state-of-the-art representation based classifiers, however, it is much more efficient and needs much less storage space.

报告人简介：

    朱鹏飞，分别于2009和2011年在哈尔滨工业大学能源科学与工程学院获得学士和硕士学位，2015年05月获得香港理工大学电子计算学系博士学位。随后到天津大学计算机科学与技术学院工作，任副教授和硕士生导师，主要研究方向是机器学习和计算机视觉。目前，发表论文30余篇，包括AAAI、IJCAI、ICCV、ECCV以及IEEE Trans等。近几年，担任IJCRS 2016、 CCML 2017、CCCV 2017本地组织主席。2015年获得黑龙江省高校自然科学一等奖（排名第五），2016年获得黑龙江省自然科学一等奖（排名第五）。