CUET_SYNTHETICA@DravidianLangTech 2026: Multilingual Transformer Based Hope Speech Detection for Coarse and Fine-Grained Classification in Tulu
Sumaiya Zaman, Miftahul Jannat Rishta, Shiti Chowdhury, Hasan Murad
Abstract
Hope speech has played a vital role in online communities, yet most NLP work has focused on English and a few high-resource languages, leaving code-mixed varieties like Tulu largely unexplored. In the Shared Task on Hope Speech Detection in Code-Mixed Tulu at DravidianLangTech@ACL 2026, we have tackled two subtasks: (i) coarse-grained classification into Encouraging, Discouraging, Uninvolved and Blended categories (Task 1) and (ii) fine-grained classification into Optimistic, Realistic, Inspiring, Fading and Hopelessness (Task 2).We have fine-tuned three multilingual transformer encoders XLM-RoBERTa-base, MuRIL and mBERT on the official training splits. In Task 1, a three-way soft-voting ensemble of all three models has yielded the best performance with a macro F1 of 0.58, securing 1st place. In Task 2, XLM-RoBERTa-base alone has outperformed both MuRIL and mBERT, achieving a macro F1 of 0.42 and also securing 1st place.- Anthology ID:
- 2026.dravidianlangtech-1.30
- Volume:
- Proceedings of the Sixth Workshop on Speech, Vision, and Language Technologies for Dravidian Languages
- Month:
- July
- Year:
- 2026
- Address:
- Underline (Virtual)
- Editors:
- Bharathi Raja Chakravarthi, Ruba Priyadharshini, Anand Kumar Madasamy, Sajeetha Thavareesan, Saranya Rajiakodi, Subalalitha Navaneethakrishnan, Dhivya Chinnappa, Balasubramanian Palani, Malliga Subramanian, Kogilavani Shanmugavadivel, Ratnavel Rajalakshmi
- Venues:
- DravidianLangTech | WS
- SIG:
- Publisher:
- Association for Computational Linguistics
- Note:
- Pages:
- 217–221
- Language:
- URL:
- https://preview.aclanthology.org/ingest-acl-workshops/2026.dravidianlangtech-1.30/
- DOI:
- Cite (ACL):
- Sumaiya Zaman, Miftahul Jannat Rishta, Shiti Chowdhury, and Hasan Murad. 2026. CUET_SYNTHETICA@DravidianLangTech 2026: Multilingual Transformer Based Hope Speech Detection for Coarse and Fine-Grained Classification in Tulu. In Proceedings of the Sixth Workshop on Speech, Vision, and Language Technologies for Dravidian Languages, pages 217–221, Underline (Virtual). Association for Computational Linguistics.
- Cite (Informal):
- CUET_SYNTHETICA@DravidianLangTech 2026: Multilingual Transformer Based Hope Speech Detection for Coarse and Fine-Grained Classification in Tulu (Zaman et al., DravidianLangTech 2026)
- PDF:
- https://preview.aclanthology.org/ingest-acl-workshops/2026.dravidianlangtech-1.30.pdf