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

• URL: http://arxiv.org/abs/2507.14590v1
• Date: Sat, 19 Jul 2025 12:23:20 GMT
• Title: Backtranslation and paraphrasing in the LLM era? Comparing data augmentation methods for emotion classification
• Authors: Łukasz Radliński, Mateusz Guściora, Jan Kocoń,
• Abstract summary: This paper systematically explores data augmentation methods for NLP, particularly through large language models like GPT.<n>Backtranslation and paraphrasing can yield comparable or even better results than zero and a few-shot generation of examples.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: 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.

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