Vector Diffusion Maps and the Connection Laplacian.
Vector Diffusion Maps and the Connection Laplacian.
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DOI:
10.1002/cpa.21395
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发表时间:
2012-08
影响因子:
3
通讯作者:
Wu HT
中科院分区:
文献类型:
--
作者:
Singer A;Wu HT
We introduce vector diffusion maps (VDM), a new mathematical framework for organizing and analyzing massive high-dimensional data sets, images, and shapes. VDM is a mathematical and algorithmic generalization of diffusion maps and other nonlinear dimensionality reduction methods, such as LLE, ISOMAP, and Laplacian eigenmaps. While existing methods are either directly or indirectly related to the heat kernel for functions over the data, VDM is based on the heat kernel for vector fields. VDM provides tools for organizing complex data sets, embedding them in a low-dimensional space, and interpolating and regressing vector fields over the data. In particular, it equips the data with a metric, which we refer to as the vector diffusion distance. In the manifold learning setup, where the data set is distributed on a low-dimensional manifold ℳd embedded in ℝp, we prove the relation between VDM and the connection Laplacian operator for vector fields over the manifold.
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影响因子:
3.7
作者:
Johnstone IM;Lu AY
通讯作者:
Lu AY
影响因子:
3.7
作者:
HOEFFDING, W
通讯作者:
HOEFFDING, W
影响因子:
3
作者:
Hadani, Ronny;Singer, Amit
通讯作者:
Singer, Amit
影响因子:
--
作者:
Goldberg, Maxim J.;Kim, Seonja
通讯作者:
Kim, Seonja
DOI:
10.1007/11503415_32
发表时间:
2005-01-01
期刊:
LEARNING THEORY, PROCEEDINGS
影响因子:
--
作者:
Hein, M;Audibert, JY;von Luxburg, U
通讯作者:
von Luxburg, U