Challenge: Large Language Models (LLMs) have shown significant potential as judges for Machine Translation (MT) quality assessment.
Approach: They propose a framework that automatically post-edits the original translation based on each error, thereby filtering out non-impactful errors.
Outcome: The proposed framework improves reliability and quality of error spans against GEMBA-MQM, across eight LLMs in both high- and low-resource languages.

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Guiding Large Language Models to Post-Edit Machine Translation with Error Annotations (2024.findings-naacl)

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Challenge: supervised systems have not replaced dedicated supervised models for machine translation tasks.
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Diagnose, Then Repair: A Two-Stage MQM-Guided Post-Editing Framework for Domain-Specific Machine Translation (2026.acl-industry)

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Challenge: In practice, LLMs are largely diagnostic, with the signals rarely translating into direct quality improvements under real production constraints.
Approach: They propose a two-stage, evaluator-guided automatic post-editing framework that turns MQM-style evaluation into targeted repairs.
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MLQE-PE: A Multilingual Quality Estimation and Post-Editing Dataset (2022.lrec-1)

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Challenge: Existing datasets for machine translation quality estimation and post-editing have several shortcomings.
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MQM Re-Annotation: A Technique for Collaborative Evaluation of Machine Translation (2026.acl-long)

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Challenge: a critical component of machine translation model development is evaluating model quality.
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RUBRIC-MQM : Span-Level LLM-as-judge in Machine Translation For High-End Models (2025.acl-industry)

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Challenge: Existing LLMs are unable to match outputs due to their open-ended nature .
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Refined Assessment for Translation Evaluation: Rethinking Machine Translation Evaluation in the Era of Human-Level Systems (2025.findings-emnlp)

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Challenge: Currently, traditional evaluation methods struggle to detect subtle translation errors.
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Enhancing Human Evaluation in Machine Translation with Comparative Judgement (2025.acl-long)

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Challenge: Human evaluation is crucial for assessing rapidly evolving language models but is influenced by annotator proficiency and task design.
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Contextual Refinement of Translations: Large Language Models for Sentence and Document-Level Post-Editing (2024.naacl-long)

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Challenge: Large language models have demonstrated considerable success in various natural language processing tasks, but their performance in NMT tasks is still underexplored.
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LQM: Linguistically Motivated Multidimensional Quality Metrics for Machine Translation (2026.findings-acl)

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Challenge: Existing MT evaluation frameworks fail to capture dialect- and culture-specific errors in diglossic languages.
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Multi-Dimensional Machine Translation Evaluation: Model Evaluation and Resource for Korean (2024.lrec-main)

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Challenge: Existing studies on MT evaluation characterize quality of output with a single number . a recent advancement in MT technologies has enabled higher-quality, more nuanced translations .
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