Why Calques Look Rare in Hindi Model Output: A Human-Anchored Measurement Study

Abdur Rahman, Vasu Sharma, Mohammad Saifullah


Abstract
Large language models write Hindi that carries the shape of English, and measuring how often is the open problem, because the phraselevel instruments available are lexical and brittle. We build a 26-pair Hindi contrast set over eight idiom families, verified by three native Hindi speakers. Prompt framing moves supplied-candidate scores toward the calque: an English-literal cue shifts them in 8 of 8 families, and a separate translate-from-English instruction shifts them again, with the direction holding on a family split frozen before the outcome was seen. Free generation appears to show far less calquing, so we audit the lexical indicator behind that appearance against native-speaker judgement. Its precision on its own positives is 1.00, while 24 of 60 sampled negatives are calques by majority verdict, and the misses concentrate in the families where its exact-match trigger was never observed to fire. The apparent scarcity is substantially a property of the instrument. We recommend that detectors of this form report coverage alongside hits.
Anthology ID:
2026.oracle-main.21
Volume:
The Proceedings of the Workshop on Open Reasoning Across Cultures Languages (ORACLE)
Month:
October
Year:
2026
Address:
Budapest, Hungary
Editors:
Leonardo Ranaldi, Giulia Pucci, Federico Ranaldi, Marco Valentino, Alexandra Birch, Fabio Massimo Zanzotto
Venues:
ORACLE | WS
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
316–328
Language:
URL:
https://aclanthology.org/2026.oracle-main.21/
DOI:
Bibkey:
Cite (ACL):
Abdur Rahman, Vasu Sharma, and Mohammad Saifullah. 2026. Why Calques Look Rare in Hindi Model Output: A Human-Anchored Measurement Study. In The Proceedings of the Workshop on Open Reasoning Across Cultures Languages (ORACLE), pages 316–328, Budapest, Hungary. Association for Computational Linguistics.
Cite (Informal):
Why Calques Look Rare in Hindi Model Output: A Human-Anchored Measurement Study (Rahman et al., ORACLE 2026)
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PDF:
https://aclanthology.org/2026.oracle-main.21.pdf