SheffieldVeraAI at SemEval-2024 Task 4: Prompting and fine-tuning a Large Vision-Language Model for Binary Classification of Persuasion Techniques in Memes

Charlie Grimshaw, Kalina Bontcheva, Xingyi Song


Abstract
This paper describes our approach for SemEval-2024 Task 4: Multilingual Detection of Persuasion Techniques in Memes. Specifically, we concentrate on Subtask 2b, a binary classification challenge that entails categorizing memes as either “propagandistic” or “non-propagandistic”. To address this task, we utilized the large multimodal pretrained model, LLaVa. We explored various prompting strategies and fine-tuning methods, and observed that the model, when not fine-tuned but provided with a few-shot learning examples, achieved the best performance. Additionally, we enhanced the model’s multilingual capabilities by integrating a machine translation model. Our system secured the 2nd place in the Arabic language category.
Anthology ID:
2024.semeval-1.278
Volume:
Proceedings of the 18th International Workshop on Semantic Evaluation (SemEval-2024)
Month:
June
Year:
2024
Address:
Mexico City, Mexico
Editors:
Atul Kr. Ojha, A. Seza Doğruöz, Harish Tayyar Madabushi, Giovanni Da San Martino, Sara Rosenthal, Aiala Rosá
Venue:
SemEval
SIG:
SIGLEX
Publisher:
Association for Computational Linguistics
Note:
Pages:
2051–2056
Language:
URL:
https://aclanthology.org/2024.semeval-1.278
DOI:
10.18653/v1/2024.semeval-1.278
Bibkey:
Cite (ACL):
Charlie Grimshaw, Kalina Bontcheva, and Xingyi Song. 2024. SheffieldVeraAI at SemEval-2024 Task 4: Prompting and fine-tuning a Large Vision-Language Model for Binary Classification of Persuasion Techniques in Memes. In Proceedings of the 18th International Workshop on Semantic Evaluation (SemEval-2024), pages 2051–2056, Mexico City, Mexico. Association for Computational Linguistics.
Cite (Informal):
SheffieldVeraAI at SemEval-2024 Task 4: Prompting and fine-tuning a Large Vision-Language Model for Binary Classification of Persuasion Techniques in Memes (Grimshaw et al., SemEval 2024)
Copy Citation:
PDF:
https://aclanthology.org/2024.semeval-1.278.pdf
Supplementary material:
 2024.semeval-1.278.SupplementaryMaterial.zip
Supplementary material:
 2024.semeval-1.278.SupplementaryMaterial.txt