FastBUS: A Fast Bayesian Framework for Unified Weakly-Supervised Learning

Fuente: arXiv
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Autores principales: Wang, Ziquan, Wang, Haobo, Chen, Ke, Feng, Lei, Chen, Gang
Formato: Preprint
Publicado: 2026
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author Wang, Ziquan
Wang, Haobo
Chen, Ke
Feng, Lei
Chen, Gang
author_facet Wang, Ziquan
Wang, Haobo
Chen, Ke
Feng, Lei
Chen, Gang
contents Machine Learning often involves various imprecise labels, leading to diverse weakly supervised settings. While recent methods aim for universal handling, they usually suffer from complex manual pre-work, ignore the relationships between associated labels, or are unable to batch process due to computational design flaws, resulting in long running times. To address these limitations, we propose a novel general framework that efficiently infers latent true label distributions across various weak supervisions. Our key idea is to express the label brute-force search process as a probabilistic transition of label variables, compressing diverse weakly supervised DFS tree structures into a shared Bayesian network. From this, we derived a latent probability calculation algorithm based on generalized belief propagation and proposed two joint acceleration strategies: 1) introducing a low-rank assumption to approximate the transition matrix, reducing time complexity; 2) designing an end-to-end state evolution module to learn batch-scale transition matrices, facilitating multi-category batch processing. In addition, the equivalence of our method with the EM algorithm in most scenarios is further demonstrated. Extensive experiments show that our method achieves SOTA results under most weakly supervised settings, and achieves up to hundreds of times faster acceleration in running time compared to other general methods.
format Preprint
id arxiv_https___arxiv_org_abs_2603_00517
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle FastBUS: A Fast Bayesian Framework for Unified Weakly-Supervised Learning
Wang, Ziquan
Wang, Haobo
Chen, Ke
Feng, Lei
Chen, Gang
Machine Learning
Artificial Intelligence
Machine Learning often involves various imprecise labels, leading to diverse weakly supervised settings. While recent methods aim for universal handling, they usually suffer from complex manual pre-work, ignore the relationships between associated labels, or are unable to batch process due to computational design flaws, resulting in long running times. To address these limitations, we propose a novel general framework that efficiently infers latent true label distributions across various weak supervisions. Our key idea is to express the label brute-force search process as a probabilistic transition of label variables, compressing diverse weakly supervised DFS tree structures into a shared Bayesian network. From this, we derived a latent probability calculation algorithm based on generalized belief propagation and proposed two joint acceleration strategies: 1) introducing a low-rank assumption to approximate the transition matrix, reducing time complexity; 2) designing an end-to-end state evolution module to learn batch-scale transition matrices, facilitating multi-category batch processing. In addition, the equivalence of our method with the EM algorithm in most scenarios is further demonstrated. Extensive experiments show that our method achieves SOTA results under most weakly supervised settings, and achieves up to hundreds of times faster acceleration in running time compared to other general methods.
title FastBUS: A Fast Bayesian Framework for Unified Weakly-Supervised Learning
topic Machine Learning
Artificial Intelligence
url https://arxiv.org/abs/2603.00517