Abstract
Considering limitations of Linear Discriminant Analysis (LDA) and Marginal Fisher Analysis (MFA), a novel discriminant analysis called Local Correlation Discriminant Analysis (LCDA) is proposed in this paper. The main idea behind LCDA is to use more robust similarity measure, correlation metric, to measure the local similarity between image data. This results in better classification performance. In addition, to further improve the discriminant power of LCDA, we extend LCDA to semi-supervised case, which can make use of both labeled and unlabeled data to perform discriminant analysis. Extensive experimental results on ORL and AR face databases demonstrate that the proposed LCDA and its semi-supervised version are superior to Principal Component Analysis (PCA), LDA, CEA, and MFA.
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Supproted by the National Natural Science Foundation of China (No. 60875004), the Natural Science Foundation of Jiangsu Province of China (No. BK2009184), and the Natural Science Foundation of the Jiangsu Higher Education Institutions of China (No. 07KJB520133).
Communication author: Chen Caikou, born in 1967, male, Ph.D., Associate Professor.
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Chen, C., Shi, J. Local correlation discriminant analysis and its semi-supervised extension. J. Electron.(China) 28, 289–296 (2011). https://doi.org/10.1007/s11767-011-0535-7
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DOI: https://doi.org/10.1007/s11767-011-0535-7