Acta mathematica scientia,Series A ›› 2024, Vol. 44 ›› Issue (4): 1012-1036.

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A Riemannian Optimization Approach for a Class of Matrix Trace Function Extremum Problem in Feature Extraction

Li Jiaofen,Kong Lvyuan,Song Jiashuo,Wen Yaqiong*()   

  1. School of Mathematics and Computational Science, Guangxi Colleges and Universities Key Laboratory of Data Analysis and Computation, Guilin University of Electronic Technology, Guangxi Guilin 541004; Center for Applied Mathematics of Guangxi (GUET), Guangxi Guilin 541004
  • Received:2023-10-10 Revised:2023-12-22 Online:2024-08-26 Published:2024-07-26
  • Supported by:
    National Natural Science Foundation of China(12261026);National Natural Science Foundation of China(12361079);National Natural Science Foundation of China(11961012);National Natural Science Foundation of China(12201149);Natural Science Foundation of Guangxi(2023GXNSFAA026067);Innovation Project of GUET Graduate Education(2022YXW01);Innovation Project of GUET Graduate Education(2022YCXS142);Innovation Project of Guangxi Graduate Education(YCSW2023316);Guangxi Key Laboratory of Automatic Detecting Technology and Instruments(YQ23104);Guangxi Key Laboratory of Automatic Detecting Technology and Instruments(YQ24105)

Abstract:

The present study focuses on robust discriminant regression models for feature extraction, which can be rephrased as minimizing matrix trace function subject to product manifold constraints. By building upon the Zhang-Hager technique, the authors develop a Riemannian nonlinear conjugate gradient method for solving a simplified version of the reconstruction problem. The method exploits the geometric properties of the product manifold, and the global convergence analysis of the proposed algorithm is provided. Empirical results demonstrate that the proposed algorithm is effective and feasible for solving the underlying problem. In terms of iteration efficiency, the proposed algorithm outperforms the existing method, other Riemannian gradient-like algorithms and Riemannian first-order and second-order algorithms available in the MATLAB toolbox Manopt.

Key words: Feature extraction, Matrix trace function, Product manifold, Riemannian conjugate gradient method

CLC Number: 

  • O151.1
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