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arXiv 1206.4624cs.LGstat.ML
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鲁棒多流形结构学习

Robust Multiple Manifolds Structure Learning

University of Southern California(南加州大学);Institute for Robotics and Intelligent Systems(机器人与智能系统研究院)

Dian Gong, Xuemei Zhao, Gerard Medioni

摘要:

提出了一种鲁棒多流形结构学习(RMMSL)方案,在多个低内在维流形假设下鲁棒地估计数据结构。在局部学习阶段,RMMSL通过加权低秩矩阵分解有效地估计局部切空间。在全局学习阶段,我们提出了一种基于局部结构学习结果的鲁棒流形聚类方法。提出的聚类方法的目的是通过引入一种新的曲线水平相似性函数,以获得最平坦的流形簇。我们的方法进行评估和比较,国家的最先进的方法对合成数据,手写数字图像,人体运动捕捉数据和摩托车视频。我们证明了所提出的方法的有效性,它产生更高的聚类精度,并产生有前途的结果,具有挑战性的任务,人体运动分割和运动流学习视频。

英文摘要:

We present a robust multiple manifolds structure learning (RMMSL) scheme to robustly estimate data structures under the multiple low intrinsic dimensional manifolds assumption. In the local learning stage, RMMSL efficiently estimates local tangent space by weighted low-rank matrix factorization. In the global learning stage, we propose a robust manifold clustering method based on local structure learning results. The proposed clustering method is designed to get the flattest manifolds clusters by introducing a novel curved-level similarity function. Our approach is evaluated and compared to state-of-the-art methods on synthetic data, handwritten digit images, human motion capture data and motorbike videos. We demonstrate the effectiveness of the proposed approach, which yields higher clustering accuracy, and produces promising results for challenging tasks of human motion segmentation and motion flow learning from videos.

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