Impromptu Cybercrime Euphemism Detection

Xiang Li, Yucheng Zhou, Laiping Zhao, Jing Li, Fangming Liu


Abstract
Detecting euphemisms is essential for content security on various social media platforms, but existing methods designed for detecting euphemisms are ineffective in impromptu euphemisms. In this work, we make a first attempt to an exploration of impromptu euphemism detection and introduce the Impromptu Cybercrime Euphemisms Detection (ICED) dataset. Moreover, we propose a detection framework tailored to this problem, which employs context augmentation modeling and multi-round iterative training. Our detection framework mainly consists of a coarse-grained and a fine-grained classification model. The coarse-grained classification model removes most of the harmless content in the corpus to be detected. The fine-grained model, impromptu euphemisms detector, integrates context augmentation and multi-round iterations training to better predicts the actual meaning of a masked token. In addition, we leverage ChatGPT to evaluate the mode’s capability. Experimental results demonstrate that our approach achieves a remarkable 76-fold improvement compared to the previous state-of-the-art euphemism detector.
Anthology ID:
2025.coling-main.612
Volume:
Proceedings of the 31st International Conference on Computational Linguistics
Month:
January
Year:
2025
Address:
Abu Dhabi, UAE
Editors:
Owen Rambow, Leo Wanner, Marianna Apidianaki, Hend Al-Khalifa, Barbara Di Eugenio, Steven Schockaert
Venue:
COLING
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
9112–9123
Language:
URL:
https://aclanthology.org/2025.coling-main.612/
DOI:
Bibkey:
Cite (ACL):
Xiang Li, Yucheng Zhou, Laiping Zhao, Jing Li, and Fangming Liu. 2025. Impromptu Cybercrime Euphemism Detection. In Proceedings of the 31st International Conference on Computational Linguistics, pages 9112–9123, Abu Dhabi, UAE. Association for Computational Linguistics.
Cite (Informal):
Impromptu Cybercrime Euphemism Detection (Li et al., COLING 2025)
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PDF:
https://aclanthology.org/2025.coling-main.612.pdf