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arXiv 1709.03030cs.LGcs.CV
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基于自学习的鲁棒稀疏编码

Robust Sparse Coding via Self-Paced Learning

University of Electronic Science and Technology of China(电子科技大学)

Xiaodong Feng, Zhiwei Tang, Sen Wu

摘要:

稀疏编码由于其广泛的理论研究和在许多信号处理应用中的优异性能而受到越来越多的关注。然而,大多数现有的稀疏编码算法是非凸的,因此容易陷入坏的局部极小值,特别是当有离群值和噪声数据。为了提高学习的鲁棒性,本文提出了一个统一的框架称为自步调稀疏编码(SPSC),它逐渐包括矩阵元素到SC学习从简单到复杂。我们还将自定进度学习图式分别概括为样本、特征和元素的不同层次的动态选择。在真实数据集上的实验结果表明了该算法的有效性。

英文摘要:

Sparse coding (SC) is attracting more and more attention due to its comprehensive theoretical studies and its excellent performance in many signal processing applications. However, most existing sparse coding algorithms are nonconvex and are thus prone to becoming stuck into bad local minima, especially when there are outliers and noisy data. To enhance the learning robustness, in this paper, we propose a unified framework named Self-Paced Sparse Coding (SPSC), which gradually include matrix elements into SC learning from easy to complex. We also generalize the self-paced learning schema into different levels of dynamic selection on samples, features and elements respectively. Experimental results on real-world data demonstrate the efficacy of the proposed algorithms.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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