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Causal inference and policy optimization system based on deep learning models

机译:基于深度学习模型的因果推理和政策优化系统

摘要

A treatment model that is a first neural network is trained to optimize a treatment loss function based on a treatment variable t using a plurality of observation vectors by regressing t on x(1),z. The trained treatment model is executed to compute an estimated treatment variable value {circumflex over (t)}i for each observation vector. An outcome model that is a second neural network is trained to optimize an outcome loss function by regressing y on x(2) and an estimated treatment variable t. The trained outcome model is executed to compute an estimated first unknown function value {circumflex over (α)}(xi(2)) and an estimated second unknown function value {circumflex over (β)}(xi(2)) for each observation vector. An influence function value is computed for a parameter of interest using {circumflex over (α)}(xi(2)) and {circumflex over (β)}(xi(2)). A value is computed for the predefined parameter of interest using the computed influence function value.
机译:通过在x(1),z上回归t,训练作为第一神经网络的治疗模型以优化基于治疗变量t的治疗损失函数。执行训练的治疗模型以计算每个观察向量的估计治疗变量值{扬抑(t)}i。通过对x(2)上的y和估计的处理变量t进行回归,训练作为第二神经网络的结果模型以优化结果损失函数。执行训练的结果模型以计算每个观察向量的估计的第一未知函数值{扬抑(α)}(xi(2))和估计的第二未知函数值{扬抑(β)}(xi(2))。使用{扬抑符覆盖(α)}(xi(2))和{扬抑符覆盖(β)}(xi(2))计算感兴趣参数的影响函数值。使用计算出的影响函数值计算感兴趣的预定义参数的值。

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