Search Results for author: Cheng Meng

Found 6 papers, 5 papers with code

Importance Sparsification for Sinkhorn Algorithm

1 code implementation11 Jun 2023 Mengyu Li, Jun Yu, Tao Li, Cheng Meng

Sinkhorn algorithm has been used pervasively to approximate the solution to optimal transport (OT) and unbalanced optimal transport (UOT) problems.

An optimal transport approach for selecting a representative subsample with application in efficient kernel density estimation

no code implementations31 May 2022 Jingyi Zhang, Cheng Meng, Jun Yu, Mengrui Zhang, Wenxuan Zhong, Ping Ma

Theoretically, we show the selected subsample can be used for efficient density estimation by deriving the convergence rate for the proposed subsample kernel density estimator.

Active Learning Density Estimation +1

Hilbert Curve Projection Distance for Distribution Comparison

1 code implementation30 May 2022 Tao Li, Cheng Meng, Hongteng Xu, Jun Yu

Distribution comparison plays a central role in many machine learning tasks like data classification and generative modeling.

Efficient Approximation of Gromov-Wasserstein Distance Using Importance Sparsification

1 code implementation26 May 2022 Mengyu Li, Jun Yu, Hongteng Xu, Cheng Meng

As a valid metric of metric-measure spaces, Gromov-Wasserstein (GW) distance has shown the potential for matching problems of structured data like point clouds and graphs.

valid

Large-scale optimal transport map estimation using projection pursuit

1 code implementation NeurIPS 2019 Cheng Meng, Yuan Ke, Jingyi Zhang, Mengrui Zhang, Wenxuan Zhong, Ping Ma

We theoretically show the proposed dimension reduction method can consistently estimate the most ``informative'' projection direction in each iteration.

Dimensionality Reduction

Sufficient dimension reduction for classification using principal optimal transport direction

1 code implementation NeurIPS 2020 Cheng Meng, Jun Yu, Jingyi Zhang, Ping Ma, Wenxuan Zhong

The proposed method, named principal optimal transport direction (POTD), estimates the basis of the SDR subspace using the principal directions of the optimal transport coupling between the data respecting different response categories.

Classification Dimensionality Reduction +1

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