离群值
数学
人工智能
回归
计算机科学
矩阵范数
子空间拓扑
模式识别(心理学)
算法
统计
特征向量
量子力学
物理
作者
Minghua Wan,Yu Yao,Tianming Zhan,Guowei Yang
出处
期刊:IEEE Transactions on Circuits and Systems for Video Technology
[Institute of Electrical and Electronics Engineers]
日期:2022-04-01
卷期号:32 (4): 1917-1927
被引量:24
标识
DOI:10.1109/tcsvt.2021.3090420
摘要
Locality-preserving projection (LPP) has been widely used in feature extraction. However, LPP does not use data category information and uses the ${L}_{2}$ -norm for distance measurement, which is highly sensitive to outliers. In this paper, we consider the LPP weight matrix from a supervised perspective and combine the low-rank regression method to propose a new model to discover and extract features. By using the ${L}_{2,1}$ -norm to constrain the loss function and the regression matrix, not only is the sensitivity to outliers reduced but the low-rank condition of the regression matrix is also restricted. Then, we propose a solution to the optimization problem. Finally, we apply the method to a series of face databases, handwriting digital datasets and palmprint datasets to test the performance, and the experimental results show that this method is effective compared with some existing methods.
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