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Creators/Authors contains: "Nitzan, Mor"

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  1. ; ; ; ; ; (, Proceedings of Machine Learning Research)
    We propose a new method to estimate Wasserstein distances and optimal transport plans between two probability distributions from samples in high dimension. Unlike plug-in rules that simply replace the true distributions by their empirical counterparts, our method promotes couplings with low transport rank, a new structural assumption that is similar to the nonnegative rank of a matrix. Regularizing based on this assumption leads to drastic improvements on high-dimensional data for various tasks, including domain adaptation in single-cell RNA sequencing data. These findings are supported by a theoretical analysis that indicates that the transport rank is key in overcoming the curse of dimensionality inherent to data-driven optimal transport. 
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    Accepted Manuscript Full Text Available
  2. ; ; ; ; ; (, AISTATS)
    null (Ed.)
    Accepted Manuscript Full Text Available