Evidence map›Paper›PMID 35791416›Full record

ArticleInternational journal of forecasting

Comparing trained and untrained probabilistic ensemble forecasts of COVID-19 cases and deaths in the United States.

Evan L Ray, Logan C Brooks, Jacob Bien, Matthew Biggerstaff, Nikos I Bosse, Johannes Bracher, Estee Y Cramer, Sebastian Funk, Aaron Gerding, Michael A Johansson and 5 more

Open access · hybridAbstract read
In one paragraph

Article in International journal of forecasting. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
8.2field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

35 citing papers in PubMed, 66 citations in OpenAlex.

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  17. The Future of HIV: Challenges in meeting the 2030medRxiv : the preprint server for health sciences · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

15 authors at 6 institutions in 3 countries.

Evan L RaySchool of Public Health and Health Sciences, University of Massachusetts Amherst, United States of America.
Logan C BrooksMachine Learning Department, Carnegie Mellon University, United States of America.
Jacob BienDepartment of Data Sciences and Operations, University of Southern California, United States of America.
Matthew BiggerstaffCOVID-19 Response, U.S. Centers for Disease Control and Prevention, United States of America.
Nikos I BosseLondon School of Hygiene & Tropical Medicine, United Kingdom.
Johannes BracherChair of Statistical Methods and Econometrics, Karlsruhe Institute of Technology, Germany.
Estee Y CramerSchool of Public Health and Health Sciences, University of Massachusetts Amherst, United States of America.
Sebastian FunkLondon School of Hygiene & Tropical Medicine, United Kingdom.
Aaron GerdingSchool of Public Health and Health Sciences, University of Massachusetts Amherst, United States of America.
Michael A JohanssonCOVID-19 Response, U.S. Centers for Disease Control and Prevention, United States of America.
Aaron RumackMachine Learning Department, Carnegie Mellon University, United States of America.
Yijin WangSchool of Public Health and Health Sciences, University of Massachusetts Amherst, United States of America.
Martha ZornSchool of Public Health and Health Sciences, University of Massachusetts Amherst, United States of America.
Ryan J TibshiraniMachine Learning Department, Carnegie Mellon University, United States of America.
Nicholas G ReichSchool of Public Health and Health Sciences, University of Massachusetts Amherst, United States of America.
University of Massachusetts Amherst · USCarnegie Mellon University · USCenters for Disease Control and Prevention · USLondon School of Hygiene & Tropical Medicine · GBKarlsruhe Institute of Technology · DEUniversity of Southern California · US

Funding

Influenza Forecasting Center of Excellence at University of Massachusetts AmherstU01IP001122 · IP · UNIVERSITY OF MASSACHUSETTS AMHERST · PI REICH, NICHOLAS G · 2019 to 2023
$5.4M
Statistical methods for real-time forecasts of infectious disease: expanding dynamic time-series and machine learning approaches for pandemic scenariosR35GM119582 · NIGMS · UNIVERSITY OF MASSACHUSETTS AMHERST · PI Nicholas G Reich · 2016 to 2026
$4.8M
NCIRD CDC HHS U01 IP001121NCIRD CDC HHS U01 IP001122NIGMS NIH HHS R35 GM119582
6 · The paper itself

Abstract

The U.S. COVID-19 Forecast Hub aggregates forecasts of the short-term burden of COVID-19 in the United States from many contributing teams. We study methods for building an ensemble that combines forecasts from these teams. These experiments have informed the ensemble methods used by the Hub. To be most useful to policymakers, ensemble forecasts must have stable performance in the presence of two key characteristics of the component forecasts: (1) occasional misalignment with the reported data, and (2) instability in the relative performance of component forecasters over time. Our results indicate that in the presence of these challenges, an untrained and robust approach to ensembling using an equally weighted median of all component forecasts is a good choice to support public health decision-makers. In settings where some contributing forecasters have a stable record of good performance, trained ensembles that give those forecasters higher weight can also be helpful.

Indexed as

COVID-19EnsembleEpidemiologyHealth forecastingQuantile combination

Identifiers

PMID35791416
PMCPMC9247236
OpenAlexW4283745601

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.