Clinical outcome prediction under hypothetical interventions -- a representation learning framework for counterfactual reasoning

• URL: http://arxiv.org/abs/2205.07234v1
• Date: Sun, 15 May 2022 09:41:16 GMT
• Title: Clinical outcome prediction under hypothetical interventions -- a representation learning framework for counterfactual reasoning
• Authors: Yikuan Li, Mohammad Mamouei, Shishir Rao, Abdelaali Hassaine, Dexter Canoy, Thomas Lukasiewicz, Kazem Rahimi, Gholamreza Salimi-Khorshidi
• Abstract summary: We introduce a new representation learning framework, which considers the provision of counterfactual explanations as an embedded property of the risk model. Our results suggest that our proposed framework has the potential to help researchers and clinicians improve personalised care.
• Score: 31.97813934144506
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Most machine learning (ML) models are developed for prediction only; offering no option for causal interpretation of their predictions or parameters/properties. This can hamper the health systems' ability to employ ML models in clinical decision-making processes, where the need and desire for predicting outcomes under hypothetical investigations (i.e., counterfactual reasoning/explanation) is high. In this research, we introduce a new representation learning framework (i.e., partial concept bottleneck), which considers the provision of counterfactual explanations as an embedded property of the risk model. Despite architectural changes necessary for jointly optimising for prediction accuracy and counterfactual reasoning, the accuracy of our approach is comparable to prediction-only models. Our results suggest that our proposed framework has the potential to help researchers and clinicians improve personalised care (e.g., by investigating the hypothetical differential effects of interventions)

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