arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1609.09199cs.LGcs.CV
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基于监督字典学习的结构感知分类

Structure-Aware Classification using Supervised Dictionary Learning

Technion - Israel Institute of Technology(以色列理工学院)

Yael Yankelevsky, Michael Elad

摘要:

在本文中,我们提出了一个监督字典学习算法,旨在保持局部几何在两个维度的数据。基于图的正则化明确考虑了数据点的局部流形结构。第二个图正则化对特征域进行了类似的处理,并有助于学习更强大的字典。这两个图都可以从训练数据构建,或者沿着字典学习过程学习和调整。这两个术语的组合促进了学习的稀疏表示的区分能力,并导致改进的分类精度。该方法在几个不同的数据集上进行了评估,代表单标签和多标签分类问题,与其他基于字典的方法相比,表现出更好的性能。

英文摘要:

In this paper, we propose a supervised dictionary learning algorithm that aims to preserve the local geometry in both dimensions of the data. A graph-based regularization explicitly takes into account the local manifold structure of the data points. A second graph regularization gives similar treatment to the feature domain and helps in learning a more robust dictionary. Both graphs can be constructed from the training data or learned and adapted along the dictionary learning process. The combination of these two terms promotes the discriminative power of the learned sparse representations and leads to improved classification accuracy. The proposed method was evaluated on several different datasets, representing both single-label and multi-label classification problems, and demonstrated better performance compared with other dictionary based approaches.

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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