HaDe at IslamicEval 2026: Evaluating Prompted Judgment and Fine-Tuned Encoders for Islamic Citation Relevance

Sanaa Alowaidi


Abstract
This paper presents our participation in IslamicEval 2026 Subtask 4, citation relevance classification for Qur’an and Hadith spans. We propose two independent systems for this task. The first is a generative large language model prompted to produce a structured, step by step relevance judgment. The second is a domain pretrained sentence encoder fine tuned with triplet loss on citation relevance data. Our evaluation compares two generative backends and three encoders pretrained on different Arabic varieties, using macro averaged F1 as the metric. Results show on development set that chain of thought judgment with ALLaM-7B consistently outperforms our embedding similarity ensemble, reaching 0.774 macro F1 against 0.357 for the ensemble, and outperforms an equivalent Fanar-S-1-7B system on seven of eight prompting strategies. Additionally, AraBERT-v02, pretrained on Modern Standard Arabic, is the consistently strongest encoder, outperforming Classical Arabic pretrained encoders in this citation relevance task. Our best submitted system, ALLaM with few shot prompting without chain of thought, scores 0.748 macro F1 on the blind test set, narrowly ahead of the same backend with chain of thought added, at 0.744.
Anthology ID:
2026.arabicnlp-sharedtasks.130
Volume:
Proceedings of The Fourth Arabic Natural Language Processing Conference: Shared Tasks
Month:
October
Year:
2026
Address:
Budapest, Hungary
Editors:
Muhammad Abdul-Mageed, Tamer Elsayed, Houda Bouamor, Samhaa El-Beltagy, Hend Al-Khalifa, Ahmed Abdelali, AbdelRahim Elmadany, Abdellah El Mekki, Kareem Darwish, Sakhar Alkhereyf, Hamzah Luqman, Salam Khalifa, Samar Magdy, Zaid Alyafeai, Injy Hamed, Wajdi Zaghouani, Imed Zitouni
Venue:
ArabicNLP
SIG:
SIGARAB
Publisher:
Association for Computational Linguistics
Note:
Pages:
1055–1066
Language:
URL:
https://aclanthology.org/2026.arabicnlp-sharedtasks.130/
DOI:
Bibkey:
Cite (ACL):
Sanaa Alowaidi. 2026. HaDe at IslamicEval 2026: Evaluating Prompted Judgment and Fine-Tuned Encoders for Islamic Citation Relevance. In Proceedings of The Fourth Arabic Natural Language Processing Conference: Shared Tasks, pages 1055–1066, Budapest, Hungary. Association for Computational Linguistics.
Cite (Informal):
HaDe at IslamicEval 2026: Evaluating Prompted Judgment and Fine-Tuned Encoders for Islamic Citation Relevance (Alowaidi, ArabicNLP 2026)
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PDF:
https://aclanthology.org/2026.arabicnlp-sharedtasks.130.pdf