Backtranslation and paraphrasing in the LLM era? Comparing data augmentation methods for emotion classification

Fuente: arXiv
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Autores principales: Radliński, Łukasz, Guściora, Mateusz, Kocoń, Jan
Formato: Preprint
Publicado: 2025
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author Radliński, Łukasz
Guściora, Mateusz
Kocoń, Jan
author_facet Radliński, Łukasz
Guściora, Mateusz
Kocoń, Jan
contents Numerous domain-specific machine learning tasks struggle with data scarcity and class imbalance. This paper systematically explores data augmentation methods for NLP, particularly through large language models like GPT. The purpose of this paper is to examine and evaluate whether traditional methods such as paraphrasing and backtranslation can leverage a new generation of models to achieve comparable performance to purely generative methods. Methods aimed at solving the problem of data scarcity and utilizing ChatGPT were chosen, as well as an exemplary dataset. We conducted a series of experiments comparing four different approaches to data augmentation in multiple experimental setups. We then evaluated the results both in terms of the quality of generated data and its impact on classification performance. The key findings indicate that backtranslation and paraphrasing can yield comparable or even better results than zero and a few-shot generation of examples.
format Preprint
id arxiv_https___arxiv_org_abs_2507_14590
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Backtranslation and paraphrasing in the LLM era? Comparing data augmentation methods for emotion classification
Radliński, Łukasz
Guściora, Mateusz
Kocoń, Jan
Computation and Language
Artificial Intelligence
Numerous domain-specific machine learning tasks struggle with data scarcity and class imbalance. This paper systematically explores data augmentation methods for NLP, particularly through large language models like GPT. The purpose of this paper is to examine and evaluate whether traditional methods such as paraphrasing and backtranslation can leverage a new generation of models to achieve comparable performance to purely generative methods. Methods aimed at solving the problem of data scarcity and utilizing ChatGPT were chosen, as well as an exemplary dataset. We conducted a series of experiments comparing four different approaches to data augmentation in multiple experimental setups. We then evaluated the results both in terms of the quality of generated data and its impact on classification performance. The key findings indicate that backtranslation and paraphrasing can yield comparable or even better results than zero and a few-shot generation of examples.
title Backtranslation and paraphrasing in the LLM era? Comparing data augmentation methods for emotion classification
topic Computation and Language
Artificial Intelligence
url https://arxiv.org/abs/2507.14590