ORCID: https://orcid.org/0000-0001-7856-8729
(2021):
Estimating Average Treatment Effects via Orthogonal Regularization.
CIKM: Conference on Information and Knowledge Management, Queensland, 01.11.2021-05.11.2021.
In: CIKM '21: Proceedings of the 30th ACM International Conference on Information & Knowledge Management,
pp. 680-689
Abstract
Decision-making often requires accurate estimation of treatment effects from observational data. This is challenging as outcomes of alternative decisions are not observed and have to be estimated. Previous methods estimate outcomes based on unconfoundedness but neglect any constraints that unconfoundedness imposes on the outcomes. In this paper, we propose a novel regularization framework for estimating average treatment effects that exploits unconfoundedness. To this end, we formalize unconfoundedness as an orthogonality constraint, which ensures that the outcomes are orthogonal to the treatment assignment. This orthogonality constraint is then included in the loss function via a regularization. Based on our regularization framework, we develop deep orthogonal networks for unconfounded treatments (DONUT), which learn outcomes that are orthogonal to the treatment assignment. Using a variety of benchmark datasets for estimating average treatment effects, we demonstrate that DONUT outperforms the state-of-the-art substantially.
Item Type: | Conference or Workshop Item (Paper) |
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Keywords: | Artificial Intelligence; AI, Künstliche Intelligenz; KI |
Faculties: | Munich School of Management > Institute of Artificial Intelligence (AI) in Management |
Subjects: | 000 Computer science, information and general works > 000 Computer science, knowledge, and systems |
Language: | English |
Item ID: | 94993 |
Date Deposited: | 09. Mar 2023, 11:54 |
Last Modified: | 09. Mar 2023, 11:54 |