Disentangled Latent Representation Learning for Tackling the Confounding M-Bias Problem in Causal Inference

In causal inference, it is a fundamental task to estimate the causal effect from observational data. However, latent confounders pose major challenges in causal inference in observational data, for example, confounding bias and 31 bias. Recent data -driven causal effect estimators tackle the confounding bias problem via balanced representation learning, but assume no 34 -bias in the system, thus they fail to handle the 34 -bias. In this paper, we identify a challenging and unsolved problem caused by a variable that leads to confounding bias and M -bias simultaneously. To address this problem with co-occurring M -bias and confounding bias, we propose a novel Disentangled Latent Representation learning framework for learning latent representations from proxy variables for unbiased Causal effect Estimation (DLRCE) from observational data. Specifically, DLRCE learns three sets of latent representations from the measured proxy variables to adjust for the confounding bias and Al -bias. Extensive experiments on both synthetic and three real -world datasets demonstrate that MACE significantly outperforms the state-of-the-art estimators in the case of the presence of both confounding bias and Al -bias.