Evidence map›Paper›PMID 36004690›Full record

ReviewJournal of proteome research2022

How (Not) to Generate a Highly Predictive Biomarker Panel Using Machine Learning.

Heather Desaire

Abstract readReview
In one paragraph

Review in Journal of proteome research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

36 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  6. Classification with Missing Data - AbioRxiv : the preprint server for biology · 2026
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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

1 author.

Heather DesaireDepartment of Chemistry, University of Kansas, Lawrence, Kansas 66045, United States.ORCID 0000-0002-2181-0112

Funding

Mass Spectrometry Measurements for Complex PTMsR35GM130354 · NIGMS · UNIVERSITY OF KANSAS LAWRENCE · PI DESAIRE, HEATHER R · 2019 to 2023
$1.9M
A Study of Race Differences in Alzheimer's Disease BiomarkersRF1AG072760 · NIA · UNIVERSITY OF KANSAS LAWRENCE · PI DESAIRE, HEATHER R · 2021 to 2021
$1.1M
NIA NIH HHS RF1 AG072760NIGMS NIH HHS R35 GM130354
6 · The paper itself

Abstract

This review "teaches" researchers how to make their lackluster proteomics data look really impressive, by applying an inappropriate but pervasive strategy that selects features in a biased manner. The strategy is demonstrated and used to build a classification model with an accuracy of 92% and AUC of 0.98, while relying completely on random numbers for the data set. This "lesson" in data processing is not to be practiced by anyone; on the contrary, it is meant to be a cautionary tale showing that very unreliable results are obtained when a biomarker panel is generated first, using all the available data, and then tested by cross-validation. Data scientists describe the error committed in this scenario as having test data leak into the feature selection step, and it is currently a common mistake in proteomics biomarker studies that rely on machine learning. After the demonstration, advice is provided about how machine learning methods can be applied to proteomics data sets without generating artificially inflated accuracies.

Indexed as

Machine LearningProteomicsBiomarkersBiomarkersAUCbiomarkerclassificationfeature selectionmachine learningoverfittingproteomicsvalidationxgboost

Identifiers

PMID36004690
PMCPMC9680826

What OpenQuestion holds

Textmetadata
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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.