3 papers
stat.ML2026
Schrödinger-Bass Bridge Barycenter Models for Measure-Valued Data
Ngoc-Hai Nguyen, Thuan Nguyen, Prakash Ishwar +1
Barycenter models, based on stochastic and deterministic optimal transport bridges between probability measures, have proven to be useful for supervised and unsupervised learning f…
stat.ML2026
Multi-Marginal Inverse Optimal Transport for Contrastive Learning Via Explicit Anchor-Positive-Negative Coupling
Ngoc-Hai Nguyen, Thuan Nguyen, Prakash Ishwar +1
Inverse Optimal Transport (OT) based methods for representation learning learn representations such that the global OT coupling between a pair of data marginals in the representati…
cs.LG2026
Optimal Representations for Generalized Contrastive Learning with Imbalanced Datasets
Thuan Nguyen, Shuchin Aeron, D. Richard Brown +1
In this paper, we provide a computable characterization of the geometry of optimal representations in Contrastive Learning (CL) when the classes are imbalanced. When classes are ba…