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Auteurs principaux: Liang, Zhiyang, Wan, Ziyu, Liu, Hongyu, Chen, Dong, Shen, Qiu, Zhu, Hao, Chen, Dongdong
Format: Preprint
Publié: 2026
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Accès en ligne:https://arxiv.org/abs/2603.26866
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author Liang, Zhiyang
Wan, Ziyu
Liu, Hongyu
Chen, Dong
Shen, Qiu
Zhu, Hao
Chen, Dongdong
author_facet Liang, Zhiyang
Wan, Ziyu
Liu, Hongyu
Chen, Dong
Shen, Qiu
Zhu, Hao
Chen, Dongdong
contents The success of modern text-to-image generation is largely attributed to massive, high-quality datasets. Currently, these datasets are curated through a filter-first paradigm that aggressively discards low-quality raw data based on the assumption that it is detrimental to model performance. Is the discarded bad data truly useless, or does it hold untapped potential? In this work, we critically re-examine this question. We propose LACON (Labeling-and-Conditioning), a novel training framework that exploits the underlying uncurated data distribution. Instead of filtering, LACON re-purposes quality signals, such as aesthetic scores and watermark probabilities as explicit, quantitative condition labels. The generative model is then trained to learn the full spectrum of data quality, from bad to good. By learning the explicit boundary between high- and low-quality content, LACON achieves superior generation quality compared to baselines trained only on filtered data using the same compute budget, proving the significant value of uncurated data.
format Preprint
id arxiv_https___arxiv_org_abs_2603_26866
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle LACON: Training Text-to-Image Model from Uncurated Data
Liang, Zhiyang
Wan, Ziyu
Liu, Hongyu
Chen, Dong
Shen, Qiu
Zhu, Hao
Chen, Dongdong
Computer Vision and Pattern Recognition
Artificial Intelligence
The success of modern text-to-image generation is largely attributed to massive, high-quality datasets. Currently, these datasets are curated through a filter-first paradigm that aggressively discards low-quality raw data based on the assumption that it is detrimental to model performance. Is the discarded bad data truly useless, or does it hold untapped potential? In this work, we critically re-examine this question. We propose LACON (Labeling-and-Conditioning), a novel training framework that exploits the underlying uncurated data distribution. Instead of filtering, LACON re-purposes quality signals, such as aesthetic scores and watermark probabilities as explicit, quantitative condition labels. The generative model is then trained to learn the full spectrum of data quality, from bad to good. By learning the explicit boundary between high- and low-quality content, LACON achieves superior generation quality compared to baselines trained only on filtered data using the same compute budget, proving the significant value of uncurated data.
title LACON: Training Text-to-Image Model from Uncurated Data
topic Computer Vision and Pattern Recognition
Artificial Intelligence
url https://arxiv.org/abs/2603.26866