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• W2081045103 abstract "Manifold learning is an effective feature extraction technique, which seeks a low-dimensional space where the manifold structure, in terms of local neighborhood, of the data set can be well preserved. A typical manifold learning method constructs a local neighborhood centered at individual samples. In this paper, we propose to construct local neighborhoods that centered at subclass centers, and seek an embedded space where such neighborhood is well preserved. We show from a probability perspective that, neighbors of a subclass center would contain more intra-class data than inter-class data, which may be desirable for discrimination. Meanwhile, we simultaneously enhance the discriminative power of extracted features by maximizing the Fisher ratio of embedded data based on subclass centers. Experimental results on CAS-PEAL and FERET face databases demonstrate that our proposed approach is more effective than most typical manifold learning methods and their supervised extensions in classification performance." @default.
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• W2081045103 date "2011-09-01" @default.
• W2081045103 modified "2023-09-26" @default.
• W2081045103 title "Discriminant subclass-center manifold preserving projection for face feature extraction" @default.
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• W2081045103 doi "https://doi.org/10.1109/icip.2011.6116297" @default.
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