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Hyperspectral classification based on kernel low-rank multitask learning

机译:基于核低秩多任务学习的高光谱分类

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In this paper, we propose a kernel low-rank multitask learning (KL-MTL) method to handle multiple features from the variational mode decomposition (VMD) domain for hyperspectral (HSI) classification. Core ideas of the proposed method are twofold: 1) a non-recursive VMD method is applied to extract various features (i.e. intrinsic mode functions (IMFs)) of the original data concurrently; 2) KL-MTL is proposed for classification by taking the extracted IMFs as multiple tasks. In KL-MTL, the low-rank representation formulated by nuclear norm can capture global structure of multiple tasks while the kernel tricks are utilized for nonlinear extension of the low-rank multitask learning (MTL). Experimental results using the real hyperspectral data demonstrate that the proposed methods have satisfactory classification performance.
机译:在本文中,我们提出了一种内核低秩多任务学习(KL-MTL)方法来处理来自高模(HSI)分类的变分模式分解(VMD)域中的多个特征。该方法的核心思想有两个方面:1)采用非递归VMD方法同时提取原始数据的各种特征(即固有模式函数(IMF))。 2)通过将提取的IMF作为多个任务,提出了KL-MTL进行分类的方法。在KL-MTL中,核规范制定的低秩表示可以捕获多个任务的全局结构,而内核技巧则用于低秩多任务学习(MTL)的非线性扩展。使用真实的高光谱数据的实验结果表明,该方法具有令人满意的分类性能。

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