Variable selection in double/debiased machine learning for causal inference: an outcome-adaptive approach
Variable selection in double/debiased machine learning for causal inference: an outcome-adaptive approach
复制标题
用于因果推理的双重/去偏机器学习中的变量选择:一种结果自适应方法
DOI:
10.1080/03610918.2021.2001655
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Shintani Mototsugu
中科院分区:
文献类型:
--
作者:
Kabata Daijiro;Shintani Mototsugu
Access to high-dimensional data has made the use of machine learning in causal inference more common in recent years. The double/debiased machine learning (DML) estimator for the treatment effect is designed to obtain a valid inference when nuisance functions in the treatment and outcome equations, are estimated using machine learning methods. However, when some covariates in the treatment equation do not appear in the outcome equation, the inclusion of such covariates in the propensity score estimation will result in the increasing bias and variance of the DML estimator. To solve this issue, we introduce an outcome-adaptive DML estimator, which incorporates the outcome-adaptive lasso for the variable selection in the propensity score estimation. We evaluate the performance of the proposed method using Monte Carlo simulation. The results indicate that our proposed method in many cases outperforms other methods.
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影响因子:
7.2
作者:
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通讯作者:
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影响因子:
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DOI:
10.1080/03610918.2013.833231
发表时间:
2015
期刊:
Communications in Statistics - Simulation and Computation
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