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arXiv 1206.6463cs.LGstat.ML
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一种迭代局部线性嵌入算法

An Iterative Locally Linear Embedding Algorithm

The University of Texas at Arlington(德克萨斯大学阿灵顿分校)

Deguang Kong, Chris H. Q. Ding, Heng Huang, Feiping Nie

摘要:

局部线性嵌入(LLE)是一种流行的降维方法。本文首先证明了具有非负约束的LLE与广泛使用的Laplacian嵌入是等价的。我们进一步建议在LLE中重复重复这两个步骤以改善结果。第三,我们放松了LLE的kNN约束,提出了一种稀疏相似性学习算法。最终的迭代LLE结合了这三个改进。大量的实验结果表明,迭代LLE算法显着改善分类和聚类结果。

英文摘要:

Local Linear embedding (LLE) is a popular dimension reduction method. In this paper, we first show LLE with nonnegative constraint is equivalent to the widely used Laplacian embedding. We further propose to iterate the two steps in LLE repeatedly to improve the results. Thirdly, we relax the kNN constraint of LLE and present a sparse similarity learning algorithm. The final Iterative LLE combines these three improvements. Extensive experiment results show that iterative LLE algorithm significantly improve both classification and clustering results.

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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