Balancing Interference and Correlation in Spatial Experimental Designs: A Causal Graph Cut Approach
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Abstract (arXiv)
This paper focuses on the design of spatial experiments to optimize the amount of information derived from the experimental data and enhance the accuracy of the resulting causal effect estimator. We propose a surrogate function for the mean squared error (MSE) of the estimator, which facilitates the use of classical graph cut algorithms to learn the optimal design. Our proposal offers three key advances: (1) it accommodates moderate to large spatial interference effects; (2) it adapts to different spatial covariance functions; (3) it is computationally efficient. Theoretical results and numerical experiments based on synthetic environments and a dispatch simulator that models a city-scale ridesharing market, further validate the effectiveness of our design. A python implementation of our method is available at https://github.com/Mamba413/CausalGraphCut.
Key facts. Cited by 5 papers in the map (data through 14 Oct 2026). Builds on 71 of its 130 references that are in the map. First posted on arXiv 26 May 2025.
Builds on
71 of 130 references.
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38 more
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