Abstract:This article is an exposition on some recent theoretical advances in learning latent structured models, with a primary focus on the fundamental roles that optimal transport distances play in the statistical theory. We aim at what may be the most critical and novel ingredient in this theory: the motivation, formulation, derivation and ramification of inverse bounds, a rich collection of structural inequalities for latent structured models which connect the space of distributions of unobserved structures of interest to the space of distributions for observed data. This theory is illustrated on classical mixture models, as well as the more modern hierarchical models that have been developed in Bayesian statistics, machine learning and related fields.
From: XuanLong Nguyen [view email]
[v1]
Fri, 16 Jan 2026 17:47:52 UTC (152 KB)
[v2]
Thu, 10 Sep 2026 18:10:43 UTC (176 KB)
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