Miss Universal Grammar: Pretraining BabyLMs with Linguistic and Non-Linguistic Sources

Erika Varis Doggett, Mary Kennedy


Abstract
Inspired by linguistic theory and recent work exploring linguistic biasing of neural networks, we propose a "Universal Grammar" (UG) pretraining paradigm for transformer-based neural networks, preparing the network to learn language more effectively, especially in low data volume scenarios. We accomplish this "universal" pretraining with a combination of synthetic language-like sequences created with a context-free grammar, biological sequence sources like protein amino acids, and material sources like crystal structures. Experiments with the BabyLM Challenge datasets show improved language acquisition in English, Dutch, and Chinese with our MissUniverse models, compared to not using "UG" pretraining. This pretraining paradigm has interesting implications for both the future of language models, and potentially how we think about human Universal Grammar.
Anthology ID:
2026.babylm-main.56
Volume:
Proceedings of the Second BabyLM Workshop
Month:
October
Year:
2026
Address:
Budapest, Hungary
Editors:
Leshem Choshen, Ryan Cotterell, Mustafa Omer Gul, Jaap Jumelet, Tal Linzen, Aaron Mueller, Suchir Salhan, Raj Sanjay Shah, Alex Warstadt, Ethan Gotlieb Wilcox
Venues:
BabyLM | WS
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
702–721
Language:
URL:
https://aclanthology.org/2026.babylm-main.56/
DOI:
Bibkey:
Cite (ACL):
Erika Varis Doggett and Mary Kennedy. 2026. Miss Universal Grammar: Pretraining BabyLMs with Linguistic and Non-Linguistic Sources. In Proceedings of the Second BabyLM Workshop, pages 702–721, Budapest, Hungary. Association for Computational Linguistics.
Cite (Informal):
Miss Universal Grammar: Pretraining BabyLMs with Linguistic and Non-Linguistic Sources (Varis Doggett & Kennedy, BabyLM 2026)
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PDF:
https://aclanthology.org/2026.babylm-main.56.pdf