mdok-style at SemEval-2026 Task 10: Finetuning LLMs for Conspiracy Detection

Dominik Macko


Abstract
SemEval-2026 Task 10 is focused on conspiracy detection. Specifically, the goal is to detect whether a Reddit comment expresses a conspiracy belief. Our submitted mdok-style system utilizes data augmentation and self-training (to cope with a rather small amount of training data) to finetune the Qwen3-32B model for a binary text-classification task. The submitted system is very competitive, ranking in the 85th percentile (8th out of 52 submissions). The results shown that our approach, which originated in machine-generated text detection, can be used for conspiracy detection as well.
Anthology ID:
2026.semeval-1.64
Volume:
Proceedings of the 20th International Workshop on Semantic Evaluation (2026)
Month:
July
Year:
2026
Address:
San Diego, California, USA
Editors:
Ekaterina Kochmar, Debanjan Ghosh, Kai North, Mamoru Komachi
Venues:
SemEval | WS
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
446–450
Language:
URL:
https://preview.aclanthology.org/ingest-acl-workshops/2026.semeval-1.64/
DOI:
Bibkey:
Cite (ACL):
Dominik Macko. 2026. mdok-style at SemEval-2026 Task 10: Finetuning LLMs for Conspiracy Detection. In Proceedings of the 20th International Workshop on Semantic Evaluation (2026), pages 446–450, San Diego, California, USA. Association for Computational Linguistics.
Cite (Informal):
mdok-style at SemEval-2026 Task 10: Finetuning LLMs for Conspiracy Detection (Macko, SemEval 2026)
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PDF:
https://preview.aclanthology.org/ingest-acl-workshops/2026.semeval-1.64.pdf