SafeFix: Targeted Model Repair via Controlled Image Generation

Fuente: arXiv
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Hauptverfasser: Xu, Ouyang, Zhang, Baoming, Mao, Ruiyu, Guo, Yunhui
Format: Preprint
Veröffentlicht: 2025
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author Xu, Ouyang
Zhang, Baoming
Mao, Ruiyu
Guo, Yunhui
author_facet Xu, Ouyang
Zhang, Baoming
Mao, Ruiyu
Guo, Yunhui
contents Deep learning models for visual recognition often exhibit systematic errors due to underrepresented semantic subpopulations. Although existing debugging frameworks can pinpoint these failures by identifying key failure attributes, repairing the model effectively remains difficult. Current solutions often rely on manually designed prompts to generate synthetic training images -- an approach prone to distribution shift and semantic errors. To overcome these challenges, we introduce a model repair module that builds on an interpretable failure attribution pipeline. Our approach uses a conditional text-to-image model to generate semantically faithful and targeted images for failure cases. To preserve the quality and relevance of the generated samples, we further employ a large vision-language model (LVLM) to filter the outputs, enforcing alignment with the original data distribution and maintaining semantic consistency. By retraining vision models with this rare-case-augmented synthetic dataset, we significantly reduce errors associated with rare cases. Our experiments demonstrate that this targeted repair strategy improves model robustness without introducing new bugs. Code is available at https://github.com/oxu2/SafeFix
format Preprint
id arxiv_https___arxiv_org_abs_2508_08701
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle SafeFix: Targeted Model Repair via Controlled Image Generation
Xu, Ouyang
Zhang, Baoming
Mao, Ruiyu
Guo, Yunhui
Computer Vision and Pattern Recognition
Artificial Intelligence
Machine Learning
Deep learning models for visual recognition often exhibit systematic errors due to underrepresented semantic subpopulations. Although existing debugging frameworks can pinpoint these failures by identifying key failure attributes, repairing the model effectively remains difficult. Current solutions often rely on manually designed prompts to generate synthetic training images -- an approach prone to distribution shift and semantic errors. To overcome these challenges, we introduce a model repair module that builds on an interpretable failure attribution pipeline. Our approach uses a conditional text-to-image model to generate semantically faithful and targeted images for failure cases. To preserve the quality and relevance of the generated samples, we further employ a large vision-language model (LVLM) to filter the outputs, enforcing alignment with the original data distribution and maintaining semantic consistency. By retraining vision models with this rare-case-augmented synthetic dataset, we significantly reduce errors associated with rare cases. Our experiments demonstrate that this targeted repair strategy improves model robustness without introducing new bugs. Code is available at https://github.com/oxu2/SafeFix
title SafeFix: Targeted Model Repair via Controlled Image Generation
topic Computer Vision and Pattern Recognition
Artificial Intelligence
Machine Learning
url https://arxiv.org/abs/2508.08701