Title
Low-rank discriminative regression learning for image classification.
Abstract
As a famous multivariable analysis technique, regression methods, such as ridge regression, are widely used for image representation and dimensionality reduction. However, the metric of ridge regression and its variants is always the Frobenius norm (F-norm), which is sensitive to outliers and noise in data. At the same time, the performance of the ridge regression and its extensions is limited by the class number of the data. To address these problems, we propose a novel regression learning method which named low-rank discriminative regression learning (LDRL) for image representation. LDRL assumes that the input data is corrupted and thus the L1 norm can be used as a sparse constraint on the noised matrix to recover the clean data for regression, which can improve the robustness of the algorithm. Due to learn a novel project matrix that is not limited by the number of classes, LDRL is suitable for classifying the data set no matter whether there is a small or large number of classes. The performance of the proposed LDRL is evaluated on six public image databases. The experimental results prove that LDRL obtains better performance than existing regression methods.
Year
DOI
Venue
2020
10.1016/j.neunet.2020.02.007
Neural Networks
Keywords
DocType
Volume
Regression,Low-rank,Discriminative,Robust,Image representation
Journal
125
Issue
ISSN
Citations 
1
0893-6080
1
PageRank 
References 
Authors
0.35
0
4
Name
Order
Citations
PageRank
Yuwu Lu119612.50
Zhihui Lai2120476.03
W K Wong315116.60
Xuelong Li415049617.31