A New Discriminative Sparse Representation Method for Robust Face Recognition via l2Regularization

Yong Xu, Zuofeng Zhong, Jian Yang, Jia You, Dapeng Zhang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

142 Citations (Scopus)


Sparse representation has shown an attractive performance in a number of applications. However, the available sparse representation methods still suffer from some problems, and it is necessary to design more efficient methods. Particularly, to design a computationally inexpensive, easily solvable, and robust sparse representation method is a significant task. In this paper, we explore the issue of designing the simple, robust, and powerfully efficient sparse representation methods for image classification. The contributions of this paper are as follows. First, a novel discriminative sparse representation method is proposed and its noticeable performance in image classification is demonstrated by the experimental results. More importantly, the proposed method outperforms the existing state-of-the-art sparse representation methods. Second, the proposed method is not only very computationally efficient but also has an intuitive and easily understandable idea. It exploits a simple algorithm to obtain a closed-form solution and discriminative representation of the test sample. Third, the feasibility, computational efficiency, and remarkable classification accuracy of the proposed l2regularization-based representation are comprehensively shown by extensive experiments and analysis. The code of the proposed method is available at http://www.yongxu.org/lunwen.html.
Original languageEnglish
Article number7499803
Pages (from-to)2233-2242
Number of pages10
JournalIEEE Transactions on Neural Networks and Learning Systems
Issue number10
Publication statusPublished - 1 Oct 2017


  • Efficient computation
  • face recognition
  • regularization
  • sparse representation

ASJC Scopus subject areas

  • Software
  • Computer Science Applications
  • Computer Networks and Communications
  • Artificial Intelligence


Dive into the research topics of 'A New Discriminative Sparse Representation Method for Robust Face Recognition via l2Regularization'. Together they form a unique fingerprint.

Cite this