StanceEval 2024: The First Arabic Stance Detection Shared Task
Summary
StanceEval 2024 was the first shared task on stance detection for Arabic, held as part of the ArabicNLP 2024 conference. Stance detection asks whether a text's author supports, opposes, or takes no position on a target. It differs from sentiment analysis because the target may be abstract or never named, and a tweet's emotional tone can conflict with its stance. Participants built systems that assigned each tweet a Favor, Against, or None label with respect to one of three targets: women empowerment, the COVID-19 vaccine, or digital transformation. Data came from the Mawqif corpus, provided by the organizers, whose tweets also carry sentiment and sarcasm labels. Teams could therefore train on stance alone or use multi-task learning. Systems were ranked by macro F1 over the Favor and Against classes only. Most teams fine-tuned Arabic BERT variants such as MARBERT and AraBERT, while others used ensembles, multi-task setups, or prompted and fine-tuned LLMs. The best system reached an F-score of 84.38. The task gives Arabic NLP, where stance work has been scarce, a common benchmark and an overview of what currently works.
Key points
- Participation: 28 teams registered, 16 submitted valid test runs, and 13 wrote system description papers.
- Data: The Mawqif dataset contains 4,121 Arabic tweets, about 1.35–1.4k per topic. It was split 85/15 into 3,502 training and 619 blind test tweets, and the "Favor" label dominates, especially for digital transformation (about 77%).
- Annotation quality: Each tweet was labeled by 3–7 annotators, accepted once confidence exceeded 0.7, and annotators who scored under 80% on test questions were excluded.
- Evaluation: The metric averages the F1 scores of Favor and Against per target. The None class was used in training but not scored.
- Systems: A fine-tuned GPT-3.5-Turbo-0125 placed second with 82.06 F1. MARBERT was the strongest backbone for several teams, including PICT and Rasid, and SMASH found that zero-shot LLMs did better with English prompts and labels.
Cited by
Cite
@inproceedings{alturayeif2024stanceeval,
title = {{StanceEval 2024: The First Arabic Stance Detection Shared Task}},
author = {Alturayeif, Nora and Luqman, Hamzah and Alyafeai, Zaid and Yamani, Asma},
booktitle = {Proceedings of the Second Arabic Natural Language Processing Conference},
year = {2024},
doi = {10.18653/v1/2024.arabicnlp-1.88},
url = {https://doi.org/10.18653/v1/2024.arabicnlp-1.88}
}References
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