Simultaneous Multilingual Fine-Tuning Versus Sequential Ordering for Robust Cross-Lingual Euphemism Detection Under Adversarial

Abstract

Abstract: Euphemisms are culturally variable and often ambiguous, posing challenges for language models, especially in low-resource settings. This paper investigates how cross-lingual transfer via sequential fine-tuning affects euphemism detection across five languages: English, Spanish, Chinese, Turkish, and Yoruba. We compare sequential fine-tuning with monolingual and simultaneous fine-tuning using XLM-R and mBERT, analyzing how performance is shaped by language pairings, typological features, and pretraining coverage. Results show that sequential fine-tuning with a high-resource L1 improves L2 perfo

Research Question

Does simultaneous multilingual fine-tuning outperform sequential ordering strategies in maintaining cross-lingual euphemism detection F1-scores for typologically diverse languages when subjected to semantic-preserving adversarial attacks?

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