Using Backbone Foundation Model for Evaluating Fairness in Chest Radiography Without Demographic Data

Fuente: arXiv
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Autores principales: Queiroz, Dilermando, Anjos, André, Berton, Lilian
Formato: Preprint
Publicado: 2024
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author Queiroz, Dilermando
Anjos, André
Berton, Lilian
author_facet Queiroz, Dilermando
Anjos, André
Berton, Lilian
contents Ensuring consistent performance across diverse populations and incorporating fairness into machine learning models are crucial for advancing medical image diagnostics and promoting equitable healthcare. However, many databases do not provide protected attributes or contain unbalanced representations of demographic groups, complicating the evaluation of model performance across different demographics and the application of bias mitigation techniques that rely on these attributes. This study aims to investigate the effectiveness of using the backbone of Foundation Models as an embedding extractor for creating groups that represent protected attributes, such as gender and age. We propose utilizing these groups in different stages of bias mitigation, including pre-processing, in-processing, and evaluation. Using databases in and out-of-distribution scenarios, it is possible to identify that the method can create groups that represent gender in both databases and reduce in 4.44% the difference between the gender attribute in-distribution and 6.16% in out-of-distribution. However, the model lacks robustness in handling age attributes, underscoring the need for more fundamentally fair and robust Foundation models. These findings suggest a role in promoting fairness assessment in scenarios where we lack knowledge of attributes, contributing to the development of more equitable medical diagnostics.
format Preprint
id arxiv_https___arxiv_org_abs_2408_16130
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Using Backbone Foundation Model for Evaluating Fairness in Chest Radiography Without Demographic Data
Queiroz, Dilermando
Anjos, André
Berton, Lilian
Computer Vision and Pattern Recognition
Machine Learning
Ensuring consistent performance across diverse populations and incorporating fairness into machine learning models are crucial for advancing medical image diagnostics and promoting equitable healthcare. However, many databases do not provide protected attributes or contain unbalanced representations of demographic groups, complicating the evaluation of model performance across different demographics and the application of bias mitigation techniques that rely on these attributes. This study aims to investigate the effectiveness of using the backbone of Foundation Models as an embedding extractor for creating groups that represent protected attributes, such as gender and age. We propose utilizing these groups in different stages of bias mitigation, including pre-processing, in-processing, and evaluation. Using databases in and out-of-distribution scenarios, it is possible to identify that the method can create groups that represent gender in both databases and reduce in 4.44% the difference between the gender attribute in-distribution and 6.16% in out-of-distribution. However, the model lacks robustness in handling age attributes, underscoring the need for more fundamentally fair and robust Foundation models. These findings suggest a role in promoting fairness assessment in scenarios where we lack knowledge of attributes, contributing to the development of more equitable medical diagnostics.
title Using Backbone Foundation Model for Evaluating Fairness in Chest Radiography Without Demographic Data
topic Computer Vision and Pattern Recognition
Machine Learning
url https://arxiv.org/abs/2408.16130