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Supervised Gromov–Wasserstein Optimal Transport with Metric-Preserving Constraints

Supervised Gromov-Wasserstein optimal transport with metric-preserving constraints
Authors: Zixuan Cang; Yaqi Wu; Yanxiang Zhao;

Supervised Gromov–Wasserstein Optimal Transport with Metric-Preserving Constraints

Abstract

We introduce the supervised Gromov-Wasserstein (sGW) optimal transport, an extension of Gromov-Wasserstein that incorporates potential infinity entries in the cost tensor. These infinity entries enable sGW to enforce application-induced constraints on preserving pairwise distance to a certain extent. A numerical solver is proposed for the sGW problem and the effectiveness is demonstrated in various numerical experiments. The high-order constraints in sGW are transferred to constraints on the coupling matrix by solving a minimal vertex cover problem. The transformed problem is solved by the mirror-C descent iteration coupled with the supervised optimal transport solver. In the numerical experiments, we first validate the proposed framework by applying it to matching synthetic datasets and investigating the impact of the model parameters. Additionally, we apply sGW to aligning single-cell RNA sequencing data where the datasets are partially overlapping and only intra-dataset metrics are used. Through comparisons with other Gromov-Wasserstein variants, we demonstrate that sGW offers an additional utility of controlling distance preservation, leading to automatic estimation of overlapping portions of datasets, which brings improved stability and flexibility in data-driven applications. The codes for sGW and for reproducing the results are available on Github [https://github.com/zcang/supervisedGW].

Keywords

Numerical optimization and variational techniques, Optimal transportation, nonconvex optimization, Spaces of measures, convergence of measures, mirror-C descent, supervised optimal transport solver, supervised Gromov-Wasserstein, minimal vertex cover, Article

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
Green