A unified survey of treatment effect heterogeneity modeling and uplift modeling

• URL: http://arxiv.org/abs/2007.12769v3
• Date: Sat, 21 Aug 2021 03:54:42 GMT
• Title: A unified survey of treatment effect heterogeneity modeling and uplift modeling
• Authors: Weijia Zhang, Jiuyong Li, Lin Liu
• Abstract summary: In recent years, a need for estimating the heterogeneous treatment effects conditioning on the different characteristics of individuals has emerged. To meet the need, researchers and practitioners from different communities have developed algorithms. We provide a unified survey of these two seemingly disconnected but closely related approaches under the potential outcome framework.
• Score: 24.803992990503186
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: A central question in many fields of scientific research is to determine how an outcome would be affected by an action, or to measure the effect of an action (a.k.a treatment effect). In recent years, a need for estimating the heterogeneous treatment effects conditioning on the different characteristics of individuals has emerged from research fields such as personalized healthcare, social science, and online marketing. To meet the need, researchers and practitioners from different communities have developed algorithms by taking the treatment effect heterogeneity modeling approach and the uplift modeling approach, respectively. In this paper, we provide a unified survey of these two seemingly disconnected yet closely related approaches under the potential outcome framework. We then provide a structured survey of existing methods by emphasizing on their inherent connections with a set of unified notations to make comparisons of the different methods easy. We then review the main applications of the surveyed methods in personalized marketing, personalized medicine, and social studies. Finally, we summarize the existing software packages and present discussions based on the use of methods on synthetic, semi-synthetic and real world data sets and provide some general guidelines for choosing methods.

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