Automatic Labelling with Open-source LLMs using Dynamic Label Schema Integration

Fuente: arXiv
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Autori principali: Walshe, Thomas, Moon, Sae Young, Xiao, Chunyang, Gunawardana, Yawwani, Silavong, Fran
Natura: Preprint
Pubblicazione: 2025
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author Walshe, Thomas
Moon, Sae Young
Xiao, Chunyang
Gunawardana, Yawwani
Silavong, Fran
author_facet Walshe, Thomas
Moon, Sae Young
Xiao, Chunyang
Gunawardana, Yawwani
Silavong, Fran
contents Acquiring labelled training data remains a costly task in real world machine learning projects to meet quantity and quality requirements. Recently Large Language Models (LLMs), notably GPT-4, have shown great promises in labelling data with high accuracy. However, privacy and cost concerns prevent the ubiquitous use of GPT-4. In this work, we explore effectively leveraging open-source models for automatic labelling. We identify integrating label schema as a promising technology but found that naively using the label description for classification leads to poor performance on high cardinality tasks. To address this, we propose Retrieval Augmented Classification (RAC) for which LLM performs inferences for one label at a time using corresponding label schema; we start with the most related label and iterates until a label is chosen by the LLM. We show that our method, which dynamically integrates label description, leads to performance improvements in labelling tasks. We further show that by focusing only on the most promising labels, RAC can trade off between label quality and coverage - a property we leverage to automatically label our internal datasets.
format Preprint
id arxiv_https___arxiv_org_abs_2501_12332
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Automatic Labelling with Open-source LLMs using Dynamic Label Schema Integration
Walshe, Thomas
Moon, Sae Young
Xiao, Chunyang
Gunawardana, Yawwani
Silavong, Fran
Computation and Language
Artificial Intelligence
Machine Learning
Acquiring labelled training data remains a costly task in real world machine learning projects to meet quantity and quality requirements. Recently Large Language Models (LLMs), notably GPT-4, have shown great promises in labelling data with high accuracy. However, privacy and cost concerns prevent the ubiquitous use of GPT-4. In this work, we explore effectively leveraging open-source models for automatic labelling. We identify integrating label schema as a promising technology but found that naively using the label description for classification leads to poor performance on high cardinality tasks. To address this, we propose Retrieval Augmented Classification (RAC) for which LLM performs inferences for one label at a time using corresponding label schema; we start with the most related label and iterates until a label is chosen by the LLM. We show that our method, which dynamically integrates label description, leads to performance improvements in labelling tasks. We further show that by focusing only on the most promising labels, RAC can trade off between label quality and coverage - a property we leverage to automatically label our internal datasets.
title Automatic Labelling with Open-source LLMs using Dynamic Label Schema Integration
topic Computation and Language
Artificial Intelligence
Machine Learning
url https://arxiv.org/abs/2501.12332