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Terminology Rarity Predicts Catastrophic Failure in LLM Translation of Low-Resource Ancient Languages: Evidence from Ancient Greek

arXiv – CS AI|James L. Zainaldin, Cameron Pattison, Manuela Marai, Jacob Wu, Mark J. Schiefsky||1 views
🤖AI Summary

A study evaluated large language models (Claude, Gemini, ChatGPT) translating Ancient Greek texts, finding high performance on previously translated works (95.2/100) but declining quality on untranslated technical texts (79.9/100). Terminology rarity was identified as a strong predictor of translation failure, with rare terms causing catastrophic performance drops.

Key Takeaways
  • LLMs achieved near-expert translation quality on previously translated Ancient Greek expository texts.
  • Performance significantly declined on untranslated pharmacological texts with dense technical terminology.
  • Terminology rarity showed strong correlation (r = -.97) with translation failure rates.
  • Automated evaluation metrics failed to discriminate among high-quality translations effectively.
  • The study provides insights for using LLMs in classical scholarship and low-resource language translation.
Read Original →via arXiv – CS AI
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