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Main Authors: Howerton, Emily, Lessler, Justin
Format: Preprint
Published: 2025
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Online Access:https://arxiv.org/abs/2512.00836
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author Howerton, Emily
Lessler, Justin
author_facet Howerton, Emily
Lessler, Justin
contents Counterfactual scenario modeling exercises that ask "what would happen if?" are one of the most common ways we plan for the future. Despite their ubiquity in planning and decision making, scenario projections are rarely evaluated retrospectively. Differences between projections and observations come from two sources: scenario deviation and model miscalibration. We argue the latter is most important for assessing the value of models in decision making, but requires estimating model error in counterfactual worlds. Here we present and contrast three approaches for estimating this error, and demonstrate the benefits and limitations of each in a simulation experiment. We provide recommendations for the estimation of counterfactual error and discuss the components of scenario design that are required to make scenario projections evaluable.
format Preprint
id arxiv_https___arxiv_org_abs_2512_00836
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Assessing model error in counterfactual worlds
Howerton, Emily
Lessler, Justin
Artificial Intelligence
Counterfactual scenario modeling exercises that ask "what would happen if?" are one of the most common ways we plan for the future. Despite their ubiquity in planning and decision making, scenario projections are rarely evaluated retrospectively. Differences between projections and observations come from two sources: scenario deviation and model miscalibration. We argue the latter is most important for assessing the value of models in decision making, but requires estimating model error in counterfactual worlds. Here we present and contrast three approaches for estimating this error, and demonstrate the benefits and limitations of each in a simulation experiment. We provide recommendations for the estimation of counterfactual error and discuss the components of scenario design that are required to make scenario projections evaluable.
title Assessing model error in counterfactual worlds
topic Artificial Intelligence
url https://arxiv.org/abs/2512.00836