A note on the computation of Wasserstein barycenters
A note on the computation of Wasserstein barycenters
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关于 Wasserstein 重心计算的说明
DOI:
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发表时间:
2015
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影响因子:
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通讯作者:
C. Matrán
中科院分区:
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作者:
P. C. Álvarez;E. Barrio;J. A. Cuesta;C. Matrán
We consider the problem of finding the barycenter of a finite set of probabilities on $mathbb{R}^d$ with respect to the Wasserstein metric. We introduce an iterative procedure which consistenly approximates the barycenter under general conditions. These cover the case of probabilities in a location-scatter family, including the Gaussian case. The performance of the iterative procedure is illustrated through numerical simulations, which show fast convergence towards the barycenter.