Empirische Inferenz Article 2007

Graph Laplacians and their Convergence on Random Neighborhood Graphs

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Empirische Inferenz
Thumb ticker sm ulrike luxburg
Statistical Learning Theory
Professor, University of Tübingen
Max Planck Fellow

Given a sample from a probability measure with support on a submanifold in Euclidean space one can construct a neighborhood graph which can be seen as an approximation of the submanifold. The graph Laplacian of such a graph is used in several machine learning methods like semi-supervised learning, dimensionality reduction and clustering. In this paper we determine the pointwise limit of three different graph Laplacians used in the literature as the sample size increases and the neighborhood size approaches zero. We show that for a uniform measure on the submanifold all graph Laplacians have the same limit up to constants. However in the case of a non-uniform measure on the submanifold only the so called random walk graph Laplacian converges to the weighted Laplace-Beltrami operator.

Author(s): Hein, M. and Audibert, J-Y. and von Luxburg, U.
Links:
Journal: Journal of Machine Learning Research
Volume: 8
Pages: 1325-1370
Year: 2007
Month: June
Day: 0
Bibtex Type: Article (article)
Digital: 0
Electronic Archiving: grant_archive
Language: en
Organization: Max-Planck-Gesellschaft
School: Biologische Kybernetik

BibTex

@article{4613,
  title = {Graph Laplacians and their Convergence on Random Neighborhood Graphs},
  journal = {Journal of Machine Learning Research},
  abstract = {Given a sample from a probability measure with support on a submanifold in Euclidean space one can construct a neighborhood graph which can be seen as an approximation of the submanifold. The graph Laplacian of such a graph is used in several machine learning methods like semi-supervised learning, dimensionality reduction and clustering. In this paper we determine the pointwise limit of three different graph Laplacians used in the literature as the sample size increases and the neighborhood size approaches zero. We show that for a uniform measure on the submanifold all graph Laplacians have the same limit up to constants. However in the case of a non-uniform measure on the submanifold only the so called random walk graph Laplacian converges to the weighted Laplace-Beltrami operator.},
  volume = {8},
  pages = {1325-1370},
  organization = {Max-Planck-Gesellschaft},
  school = {Biologische Kybernetik},
  month = jun,
  year = {2007},
  slug = {4613},
  author = {Hein, M. and Audibert, J-Y. and von Luxburg, U.},
  month_numeric = {6}
}