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Activity Number: 262 - Emerging Statistical Theory and Methods in Deep Learning
Type: Invited
Date/Time: Wednesday, August 11, 2021 : 1:30 PM to 3:20 PM
Sponsor: Section for Statistical Programmers and Analysts
Abstract #316736
Title: Causal Inference via Artificial Neural Networks: From Prediction to Causation
Author(s): Shujie Ma* and Xiaohong Chen and Ying Liu and Zheng Zhang
Companies: University of California, Riverside and Yale University and University of California, Riverside and Renmin University of China
Keywords: Artificial neural networks; Propensity score; Causal inference ; Semiparametric efficiency
Abstract:

Recent technological advances have created numerous large-scale datasets in observational studies, which provide unprecedented opportunities for evaluating the effectiveness of various treatments. Meanwhile, the complex nature of large-scale observational data post great challenges to the existing conventional methods for causality analysis. In this talk, I will introduce a new unified approach that we have proposed for efficiently estimating and inferring causal effects using artificial neural networks. We develop a generalized optimization estimation through moment constraints with the nuisance functions approximated by artificial neural networks. This general optimization framework includes the average, quantile and asymmetric least squares treatment effects as special cases. The proposed methods take full advantage of the large sample size of large-scale data and provide effective protection against mis-specification bias while achieving dimensionality reduction. We also show that the resulting treatment effect estimators are supported by reliable statistical properties that are important for conducting causal inference.


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