Untangling the Influence of Typology, Data, and Model Architecture on Ranking Transfer Languages for Cross-Lingual POS Tagging

Enora Rice, Ali Marashian, Hannah Haynie, Katharina Wense, Alexis Palmer


Abstract
Cross-lingual transfer learning is an invaluable tool for overcoming data scarcity, yet selecting a suitable transfer language remains a challenge. The precise roles of linguistic typology, training data, and model architecture in transfer language choice are not fully understood. We take a holistic approach, examining how both dataset-specific and fine-grained typological features influence transfer language selection for part-of-speech tagging, considering two different sources for morphosyntactic features. While previous work examines these dynamics in the context of bilingual biLSTMS, we extend our analysis to a more modern transfer learning pipeline: zero-shot prediction with pretrained multilingual models. We train a series of transfer language ranking systems and examine how different feature inputs influence ranker performance across architectures. Word overlap, type-token ratio, and genealogical distance emerge as top features across all architectures. Our findings reveal that a combination of typological and dataset-dependent features leads to the best rankings, and that good performance can be obtained with either feature group on its own.
Anthology ID:
2025.lm4uc-1.4
Volume:
Proceedings of the 1st Workshop on Language Models for Underserved Communities (LM4UC 2025)
Month:
May
Year:
2025
Address:
Albuquerque, New Mexico
Editor:
Duc Nguyen
Venues:
LM4UC | WS
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Publisher:
Association for Computational Linguistics
Note:
Pages:
22–31
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URL:
https://preview.aclanthology.org/Ingest-2025-COMPUTEL/2025.lm4uc-1.4/
DOI:
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Cite (ACL):
Enora Rice, Ali Marashian, Hannah Haynie, Katharina Wense, and Alexis Palmer. 2025. Untangling the Influence of Typology, Data, and Model Architecture on Ranking Transfer Languages for Cross-Lingual POS Tagging. In Proceedings of the 1st Workshop on Language Models for Underserved Communities (LM4UC 2025), pages 22–31, Albuquerque, New Mexico. Association for Computational Linguistics.
Cite (Informal):
Untangling the Influence of Typology, Data, and Model Architecture on Ranking Transfer Languages for Cross-Lingual POS Tagging (Rice et al., LM4UC 2025)
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https://preview.aclanthology.org/Ingest-2025-COMPUTEL/2025.lm4uc-1.4.pdf