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Main Authors: Qi, Yuanyuan, Yang, Xiaohao, Lu, Jueqing, Guo, Guoxiang, Enticott, Joanne, Liu, Gang, Du, Lan
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2601.15773
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author Qi, Yuanyuan
Yang, Xiaohao
Lu, Jueqing
Guo, Guoxiang
Enticott, Joanne
Liu, Gang
Du, Lan
author_facet Qi, Yuanyuan
Yang, Xiaohao
Lu, Jueqing
Guo, Guoxiang
Enticott, Joanne
Liu, Gang
Du, Lan
contents With the rapid advancement and strong generalization capabilities of large language models (LLMs), they have been increasingly incorporated into the active learning pipelines as annotators to reduce annotation costs. However, considering the annotation quality, labels generated by LLMs often fall short of real-world applicability. To address this, we propose a novel active learning framework, Mixture of LLMs in the Loop Active Learning, replacing human annotators with labels generated through a Mixture-of-LLMs-based annotation model, aimed at enhancing LLM-based annotation robustness by aggregating the strengths of multiple LLMs. To further mitigate the impact of the noisy labels, we introduce annotation discrepancy and negative learning to identify the unreliable annotations and enhance learning effectiveness. Extensive experiments demonstrate that our framework achieves performance comparable to human annotation and consistently outperforms single-LLM baselines and other LLM-ensemble-based approaches. Moreover, our framework is built on lightweight LLMs, enabling it to operate fully on local machines in real-world applications.
format Preprint
id arxiv_https___arxiv_org_abs_2601_15773
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Next Generation Active Learning: Mixture of LLMs in the Loop
Qi, Yuanyuan
Yang, Xiaohao
Lu, Jueqing
Guo, Guoxiang
Enticott, Joanne
Liu, Gang
Du, Lan
Machine Learning
With the rapid advancement and strong generalization capabilities of large language models (LLMs), they have been increasingly incorporated into the active learning pipelines as annotators to reduce annotation costs. However, considering the annotation quality, labels generated by LLMs often fall short of real-world applicability. To address this, we propose a novel active learning framework, Mixture of LLMs in the Loop Active Learning, replacing human annotators with labels generated through a Mixture-of-LLMs-based annotation model, aimed at enhancing LLM-based annotation robustness by aggregating the strengths of multiple LLMs. To further mitigate the impact of the noisy labels, we introduce annotation discrepancy and negative learning to identify the unreliable annotations and enhance learning effectiveness. Extensive experiments demonstrate that our framework achieves performance comparable to human annotation and consistently outperforms single-LLM baselines and other LLM-ensemble-based approaches. Moreover, our framework is built on lightweight LLMs, enabling it to operate fully on local machines in real-world applications.
title Next Generation Active Learning: Mixture of LLMs in the Loop
topic Machine Learning
url https://arxiv.org/abs/2601.15773