• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

J4 ›› 2014, Vol. 36 ›› Issue (07): 1357-1362.

• 论文 • 上一篇    下一篇

完备的双子空间边界近邻鉴别分析

林玉娥1,李敬兆1,梁兴柱1,林玉荣2   

  1. (1.安徽理工大学计算机科学与工程学院,安徽 淮南 232001;2.哈尔滨工业大学航天学院,黑龙江 哈尔滨 150001)
  • 收稿日期:2013-01-17 修回日期:2013-04-07 出版日期:2014-07-25 发布日期:2014-07-25
  • 基金资助:

    国家自然科学基金资助项目(61170060);安徽省自然科学基金资助项目(1208085QF123,11040606M135);安徽省高等学校自然科学基金资助项目(KJ2012Z084,KJ2011A083);安徽理工大学中青年学术骨干资助项目

A complete dual subspace marginal
neighborhood discriminant analysis algorithm            

LIN Yue1,LI Jingzhao1,LIANG Xingzhu1,LIN Yurong2   

  1. (1.School of Computer Science & Engineering,Anhui University of Science and Technology,Huainan 232001;2.School of Astronautics,Harbin Institute of Technology,Harbin 150001,China)
  • Received:2013-01-17 Revised:2013-04-07 Online:2014-07-25 Published:2014-07-25

摘要:

针对边界Fisher鉴别分析算法不能够有效解决小样本问题,提出了一种完备的双子空间边界近邻鉴别分析算法。该算法通过理论分析将MFA的目标函数分解成两部分,对此目标函数的求解,首先要对高维样本进行PCA降维至一个低维子空间, 而这一过程并不损失任何有效的鉴别信息,对此通过定理1和定理2进行了证明;然后再分别求出类内边界近邻互补子空间的两投影矩阵。最后人脸库上的实验结果表明了所提方法的有效性。

关键词: 边界Fisher鉴别分析, 小样本问题, 双子空间, 目标函数

Abstract:

Aiming at the shortcomings that the marginal Fisher discriminant analysis algorithm can not effectively solve the small sample size problem, a complete dual subspace marginal neighborhood discriminant analysis algorithm is proposed. According to the theoretical analysis, the proposed algorithm breaks down the criterion function of the Fisher discriminant analysis into two parts. To solve the criterion function, the algorithm firstly uses PCA to project highdimensional samples into a lowdimensional subspace. In the lowdimensional subspace, the objective function does not lose any effective discriminant information, which is proved by theorem 1 and theorem 2. Secondly, projection matrix from the complementary subspace of withinclass marginal neighborhood is calculated. Finally, the experimental results on face database demonstrate the effectiveness of the proposed algorithm.

Key words: marginal Fisher discriminant analysis;the small sample size problem;dual subspace;the criterion function