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Johnny Xi

3 accepted papers

2025

Distinguishing Cause from Effect with Causal Velocity Models

ICML 2025poster

Bivariate structural causal models (SCM) are often used to infer causal direction by examining their goodness-of-fit under restricted model classes. In this paper, we describe a parametrization of bivariate SCMs in terms of a *causal velocity* by viewing the cause variable as time in a dynamical sys…

2025

Identifying Metric Structures of Deep Latent Variable Models

ICML 2025poster

Deep latent variable models learn condensed representations of data that, hopefully, reflect the inner workings of the studied phenomena. Unfortunately, these latent representations are not statistically identifiable, meaning they cannot be uniquely determined. Domain experts, therefore, need to tre…

2024

Propensity Score Alignment of Unpaired Multimodal Data

NeurIPS 2024poster

Multimodal representation learning techniques typically require paired samples to learn shared representations, but collecting paired samples can be challenging in fields like biology, where measurement devices often destroy the samples. This paper presents an approach to address the challenge of al…