Evaluating infectious disease forecasts with allocation scoring rules

Fuente: arXiv
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Hauptverfasser: Gerding, Aaron, Reich, Nicholas G., Rogers, Benjamin, Ray, Evan L.
Format: Preprint
Veröffentlicht: 2023
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author Gerding, Aaron
Reich, Nicholas G.
Rogers, Benjamin
Ray, Evan L.
author_facet Gerding, Aaron
Reich, Nicholas G.
Rogers, Benjamin
Ray, Evan L.
contents Recent years have seen increasing efforts to forecast infectious disease burdens, with a primary goal being to help public health workers make informed policy decisions. However, there has only been limited discussion of how predominant forecast evaluation metrics might indicate the success of policies based in part on those forecasts. We explore one possible tether between forecasts and policy: the allocation of limited medical resources so as to minimize unmet need. We use probabilistic forecasts of disease burden in each of several regions to determine optimal resource allocations, and then we score forecasts according to how much unmet need their associated allocations would have allowed. We illustrate with forecasts of COVID-19 hospitalizations in the US, and we find that the forecast skill ranking given by this allocation scoring rule can vary substantially from the ranking given by the weighted interval score. We see this as evidence that the allocation scoring rule detects forecast value that is missed by traditional accuracy measures and that the general strategy of designing scoring rules that are directly linked to policy performance is a promising direction for epidemic forecast evaluation.
format Preprint
id arxiv_https___arxiv_org_abs_2312_16201
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Evaluating infectious disease forecasts with allocation scoring rules
Gerding, Aaron
Reich, Nicholas G.
Rogers, Benjamin
Ray, Evan L.
Applications
Recent years have seen increasing efforts to forecast infectious disease burdens, with a primary goal being to help public health workers make informed policy decisions. However, there has only been limited discussion of how predominant forecast evaluation metrics might indicate the success of policies based in part on those forecasts. We explore one possible tether between forecasts and policy: the allocation of limited medical resources so as to minimize unmet need. We use probabilistic forecasts of disease burden in each of several regions to determine optimal resource allocations, and then we score forecasts according to how much unmet need their associated allocations would have allowed. We illustrate with forecasts of COVID-19 hospitalizations in the US, and we find that the forecast skill ranking given by this allocation scoring rule can vary substantially from the ranking given by the weighted interval score. We see this as evidence that the allocation scoring rule detects forecast value that is missed by traditional accuracy measures and that the general strategy of designing scoring rules that are directly linked to policy performance is a promising direction for epidemic forecast evaluation.
title Evaluating infectious disease forecasts with allocation scoring rules
topic Applications
url https://arxiv.org/abs/2312.16201