Thunderbolts at #SMM4H-HeaRD 2026: Detection of Insomnia in Clinical Notes using Transformers
Guddanti Venkata Sree Charan, Nama_Ss@Cs.Iitr.Ac.In Nama_Ss@Cs.Iitr.Ac.In, Raksha Sharma, Rudra Murthy
Abstract
We present the SuSh system for Subtask 1 of the MultiClinAI shared task at the 11th SMM4H and HeaRD Workshop (ACL 2026), which addresses multilingual clinical named entity recognition (NER) across seven languages. Our system adopts a fully zero-shot approach using GLiNER-biomed-large-v1.0, a span-based NER model pre-trained on biomedical text, requiring no task-specific fine-tuning or labeled data in target languages. We apply a character-level sliding window strategy to handle long clinical documents that exceed the model’s token limit and incorporate a post processing pipeline including threshold optimization via F1-max sweep, entity-specific gazetteer lookup derived from DisTEMIST and SympTEMIST terminology lists, span boundary correction, and negation filtering. Our official submission achieves a Strict F1 of 0.5175, Strict Precision of 0.5536, Strict Recall of 0.4859, and CHR F1 of 0.6130 on the English disease subtask, demonstrating that domain adapted zero-shot biomedical NER models can serve as competitive baselines for multilingual026 clinical entity recognition without any task specific training data.- Anthology ID:
- 2026.smm4h-1.43
- Volume:
- Proceedings of the 11th Social Media Mining for Health Research and Applications (SMM4H-HeaRD 2026) Workshop and Shared Tasks
- Month:
- July
- Year:
- 2026
- Address:
- San Diego, United States
- Editors:
- Guillermo Lopez-Garcia, Graciela Gonzalez-Hernandez
- Venues:
- SMM4H | WS
- SIG:
- Publisher:
- Association for Computational Linguistics
- Note:
- Pages:
- 264–267
- Language:
- URL:
- https://preview.aclanthology.org/ingest-acl-workshops/2026.smm4h-1.43/
- DOI:
- Cite (ACL):
- Guddanti Venkata Sree Charan, Nama_Ss@Cs.Iitr.Ac.In Nama_Ss@Cs.Iitr.Ac.In, Raksha Sharma, and Rudra Murthy. 2026. Thunderbolts at #SMM4H-HeaRD 2026: Detection of Insomnia in Clinical Notes using Transformers. In Proceedings of the 11th Social Media Mining for Health Research and Applications (SMM4H-HeaRD 2026) Workshop and Shared Tasks, pages 264–267, San Diego, United States. Association for Computational Linguistics.
- Cite (Informal):
- Thunderbolts at #SMM4H-HeaRD 2026: Detection of Insomnia in Clinical Notes using Transformers (Charan et al., SMM4H 2026)
- PDF:
- https://preview.aclanthology.org/ingest-acl-workshops/2026.smm4h-1.43.pdf