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Adaptive maximum margin analysis for image recognition
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DOI：10.1016/j.patcog.2016.07.025.png)
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摘要
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Most existing discriminant manifold learning methods aim to maximize the margin among nearby data, which is determined in the high-dimensional original space. As such, they do not necessarily best maximize the margin between different classes in the low-dimensional space, which is a critically important property for image classification. To handle this problem, we propose an adaptive maximum margin analysis (AMMA) for feature extraction. AMMA aims to seek a projection matrix that best maximize the margin, which is calculated in the low- dimensional space. It uses sparse representation to adaptively construct the intrinsic and penalty graphs. Finally, an iterative algorithm is developed to solve the projection matrix. Extensive experimental results on several image databases illustrate the effectiveness of the proposed approach. (C) 2016 Elsevier Ltd. All rights reserved.
Keyword:
Maximum margin
Dimensionality reduction
Sparse representation
Image recognition
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