Crosslingual Optimized Metric for Translation Assessment of Indian Languages

Fuente: arXiv
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Autori principali: Ahsan, Arafat, Mujadia, Vandan, Mishra, Pruthwik, Bhaskar, Yash, Sharma, Dipti Misra
Natura: Preprint
Pubblicazione: 2025
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author Ahsan, Arafat
Mujadia, Vandan
Mishra, Pruthwik
Bhaskar, Yash
Sharma, Dipti Misra
author_facet Ahsan, Arafat
Mujadia, Vandan
Mishra, Pruthwik
Bhaskar, Yash
Sharma, Dipti Misra
contents Automatic evaluation of translation remains a challenging task owing to the orthographic, morphological, syntactic and semantic richness and divergence observed across languages. String-based metrics such as BLEU have previously been extensively used for automatic evaluation tasks, but their limitations are now increasingly recognized. Although learned neural metrics have helped mitigate some of the limitations of string-based approaches, they remain constrained by a paucity of gold evaluation data in most languages beyond the usual high-resource pairs. In this present work we address some of these gaps. We create a large human evaluation ratings dataset for 13 Indian languages covering 21 translation directions and then train a neural translation evaluation metric named Cross-lingual Optimized Metric for Translation Assessment of Indian Languages (COMTAIL) on this dataset. The best performing metric variants show significant performance gains over previous state-of-the-art when adjudging translation pairs with at least one Indian language. Furthermore, we conduct a series of ablation studies to highlight the sensitivities of such a metric to changes in domain, translation quality, and language groupings. We release both the COMTAIL dataset and the accompanying metric models.
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id arxiv_https___arxiv_org_abs_2509_17667
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Crosslingual Optimized Metric for Translation Assessment of Indian Languages
Ahsan, Arafat
Mujadia, Vandan
Mishra, Pruthwik
Bhaskar, Yash
Sharma, Dipti Misra
Computation and Language
Automatic evaluation of translation remains a challenging task owing to the orthographic, morphological, syntactic and semantic richness and divergence observed across languages. String-based metrics such as BLEU have previously been extensively used for automatic evaluation tasks, but their limitations are now increasingly recognized. Although learned neural metrics have helped mitigate some of the limitations of string-based approaches, they remain constrained by a paucity of gold evaluation data in most languages beyond the usual high-resource pairs. In this present work we address some of these gaps. We create a large human evaluation ratings dataset for 13 Indian languages covering 21 translation directions and then train a neural translation evaluation metric named Cross-lingual Optimized Metric for Translation Assessment of Indian Languages (COMTAIL) on this dataset. The best performing metric variants show significant performance gains over previous state-of-the-art when adjudging translation pairs with at least one Indian language. Furthermore, we conduct a series of ablation studies to highlight the sensitivities of such a metric to changes in domain, translation quality, and language groupings. We release both the COMTAIL dataset and the accompanying metric models.
title Crosslingual Optimized Metric for Translation Assessment of Indian Languages
topic Computation and Language
url https://arxiv.org/abs/2509.17667