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Autori principali: Felske, Mirco, Stiene, Stefan
Natura: Preprint
Pubblicazione: 2025
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Accesso online:https://arxiv.org/abs/2509.11588
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author Felske, Mirco
Stiene, Stefan
author_facet Felske, Mirco
Stiene, Stefan
contents We propose BiCDO (Bias-Controlled Class Distribution Optimizer), an iterative, data-centric framework that identifies Pareto optimized class distributions for multi-class image classification. BiCDO enables performance prioritization for specific classes, which is useful in safety-critical scenarios (e.g. prioritizing 'Human' over 'Dog'). Unlike uniform distributions, BiCDO determines the optimal number of images per class to enhance reliability and minimize bias and variance in the objective function. BiCDO can be incorporated into existing training pipelines with minimal code changes and supports any labelled multi-class dataset. We have validated BiCDO using EfficientNet, ResNet and ConvNeXt on CIFAR-10 and iNaturalist21 datasets, demonstrating improved, balanced model performance through optimized data distribution.
format Preprint
id arxiv_https___arxiv_org_abs_2509_11588
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Optimizing Class Distributions for Bias-Aware Multi-Class Learning
Felske, Mirco
Stiene, Stefan
Computer Vision and Pattern Recognition
We propose BiCDO (Bias-Controlled Class Distribution Optimizer), an iterative, data-centric framework that identifies Pareto optimized class distributions for multi-class image classification. BiCDO enables performance prioritization for specific classes, which is useful in safety-critical scenarios (e.g. prioritizing 'Human' over 'Dog'). Unlike uniform distributions, BiCDO determines the optimal number of images per class to enhance reliability and minimize bias and variance in the objective function. BiCDO can be incorporated into existing training pipelines with minimal code changes and supports any labelled multi-class dataset. We have validated BiCDO using EfficientNet, ResNet and ConvNeXt on CIFAR-10 and iNaturalist21 datasets, demonstrating improved, balanced model performance through optimized data distribution.
title Optimizing Class Distributions for Bias-Aware Multi-Class Learning
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2509.11588