mlsanityData to 7 Oct 2026

Differences in Typological Alignment in Language Models' Treatment of Differential Argument Marking

arXiv 2602.17653 ↗First posted 19 Feb 2026cs.CLcited by 1

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Abstract (arXiv)

Recent work has shown that language models (LMs) trained on synthetic corpora can exhibit typological preferences that resemble cross-linguistic regularities in human languages, particularly for syntactic phenomena such as word order. In this paper, we extend this paradigm to differential argument marking (DAM), a semantic licensing system in which morphological marking depends on semantic prominence. Using a controlled synthetic learning method, we train GPT-2 models on 18 corpora implementing distinct DAM systems and evaluate their generalization using minimal pairs. Our results reveal a dissociation between two typological dimensions of DAM. Models reliably exhibit human-like preferences for natural markedness direction, favoring systems in which overt marking targets semantically atypical arguments. In contrast, models do not reproduce the strong object preference in human languages, in which overt marking in DAM more often targets objects rather than subjects. These findings suggest that different typological tendencies may arise from distinct underlying sources.

Key facts. Cited by 1 paper in the map (data through 7 Oct 2026). Builds on 16 of its 54 references that are in the map. First posted on arXiv 19 Feb 2026.

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16 of 54 references.

References · 16

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4 more
  1. 2024Manipulating language models' training data to study syntactic constraint learning: the case of English passivizationcited by 12
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