Prompt Candidates, then Distill: A Teacher-Student Framework for LLM-driven Data Annotation

Fuente: arXiv
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Autori principali: Xia, Mingxuan, Wang, Haobo, Li, Yixuan, Yu, Zewei, Wang, Jindong, Zhao, Junbo, Wu, Runze
Natura: Preprint
Pubblicazione: 2025
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author Xia, Mingxuan
Wang, Haobo
Li, Yixuan
Yu, Zewei
Wang, Jindong
Zhao, Junbo
Wu, Runze
author_facet Xia, Mingxuan
Wang, Haobo
Li, Yixuan
Yu, Zewei
Wang, Jindong
Zhao, Junbo
Wu, Runze
contents Recently, Large Language Models (LLMs) have demonstrated significant potential for data annotation, markedly reducing the labor costs associated with downstream applications. However, existing methods mostly adopt an aggressive strategy by prompting LLM to determine a single gold label for each unlabeled sample. Due to the inherent uncertainty within LLMs, they often produce incorrect labels for difficult samples, severely compromising the data quality for downstream applications. Motivated by ambiguity aversion in human behaviors, we propose a novel candidate annotation paradigm wherein large language models are encouraged to output all possible labels when incurring uncertainty. To ensure unique labels are provided for downstream tasks, we develop a teacher-student framework CanDist that distills candidate annotations with a Small Language Model (SLM). We further provide a rigorous justification demonstrating that distilling candidate annotations from the teacher LLM offers superior theoretical guarantees compared to directly using single annotations. Extensive experiments across six text classification tasks validate the effectiveness of our proposed method. The source code is available at https://github.com/MingxuanXia/CanDist.
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id arxiv_https___arxiv_org_abs_2506_03857
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Prompt Candidates, then Distill: A Teacher-Student Framework for LLM-driven Data Annotation
Xia, Mingxuan
Wang, Haobo
Li, Yixuan
Yu, Zewei
Wang, Jindong
Zhao, Junbo
Wu, Runze
Machine Learning
Computation and Language
Recently, Large Language Models (LLMs) have demonstrated significant potential for data annotation, markedly reducing the labor costs associated with downstream applications. However, existing methods mostly adopt an aggressive strategy by prompting LLM to determine a single gold label for each unlabeled sample. Due to the inherent uncertainty within LLMs, they often produce incorrect labels for difficult samples, severely compromising the data quality for downstream applications. Motivated by ambiguity aversion in human behaviors, we propose a novel candidate annotation paradigm wherein large language models are encouraged to output all possible labels when incurring uncertainty. To ensure unique labels are provided for downstream tasks, we develop a teacher-student framework CanDist that distills candidate annotations with a Small Language Model (SLM). We further provide a rigorous justification demonstrating that distilling candidate annotations from the teacher LLM offers superior theoretical guarantees compared to directly using single annotations. Extensive experiments across six text classification tasks validate the effectiveness of our proposed method. The source code is available at https://github.com/MingxuanXia/CanDist.
title Prompt Candidates, then Distill: A Teacher-Student Framework for LLM-driven Data Annotation
topic Machine Learning
Computation and Language
url https://arxiv.org/abs/2506.03857