Latent Variable Modeling for Robust Causal Effect Estimation

• URL: http://arxiv.org/abs/2508.20259v1
• Date: Wed, 27 Aug 2025 20:31:03 GMT
• Title: Latent Variable Modeling for Robust Causal Effect Estimation
• Authors: Tetsuro Morimura, Tatsushi Oka, Yugo Suzuki, Daisuke Moriwaki,
• Abstract summary: We propose a new framework that integrates latent variable modeling into the double machine learning paradigm.<n>We demonstrate the robustness and effectiveness of our method through extensive experiments on both synthetic and real-world datasets.
• Score: 10.245287265072927
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Latent variable models provide a powerful framework for incorporating and inferring unobserved factors in observational data. In causal inference, they help account for hidden factors influencing treatment or outcome, thereby addressing challenges posed by missing or unmeasured covariates. This paper proposes a new framework that integrates latent variable modeling into the double machine learning (DML) paradigm to enable robust causal effect estimation in the presence of such hidden factors. We consider two scenarios: one where a latent variable affects only the outcome, and another where it may influence both treatment and outcome. To ensure tractability, we incorporate latent variables only in the second stage of DML, separating representation learning from latent inference. We demonstrate the robustness and effectiveness of our method through extensive experiments on both synthetic and real-world datasets.

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