QE4PE: Word-level Quality Estimation for Human Post-Editing

Fuente: arXiv
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Hauptverfasser: Sarti, Gabriele, Zouhar, Vilém, Chrupała, Grzegorz, Guerberof-Arenas, Ana, Nissim, Malvina, Bisazza, Arianna
Format: Preprint
Veröffentlicht: 2025
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author Sarti, Gabriele
Zouhar, Vilém
Chrupała, Grzegorz
Guerberof-Arenas, Ana
Nissim, Malvina
Bisazza, Arianna
author_facet Sarti, Gabriele
Zouhar, Vilém
Chrupała, Grzegorz
Guerberof-Arenas, Ana
Nissim, Malvina
Bisazza, Arianna
contents Word-level quality estimation (QE) methods aim to detect erroneous spans in machine translations, which can direct and facilitate human post-editing. While the accuracy of word-level QE systems has been assessed extensively, their usability and downstream influence on the speed, quality and editing choices of human post-editing remain understudied. In this study, we investigate the impact of word-level QE on machine translation (MT) post-editing in a realistic setting involving 42 professional post-editors across two translation directions. We compare four error-span highlight modalities, including supervised and uncertainty-based word-level QE methods, for identifying potential errors in the outputs of a state-of-the-art neural MT model. Post-editing effort and productivity are estimated from behavioral logs, while quality improvements are assessed by word- and segment-level human annotation. We find that domain, language and editors' speed are critical factors in determining highlights' effectiveness, with modest differences between human-made and automated QE highlights underlining a gap between accuracy and usability in professional workflows.
format Preprint
id arxiv_https___arxiv_org_abs_2503_03044
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle QE4PE: Word-level Quality Estimation for Human Post-Editing
Sarti, Gabriele
Zouhar, Vilém
Chrupała, Grzegorz
Guerberof-Arenas, Ana
Nissim, Malvina
Bisazza, Arianna
Computation and Language
Human-Computer Interaction
Word-level quality estimation (QE) methods aim to detect erroneous spans in machine translations, which can direct and facilitate human post-editing. While the accuracy of word-level QE systems has been assessed extensively, their usability and downstream influence on the speed, quality and editing choices of human post-editing remain understudied. In this study, we investigate the impact of word-level QE on machine translation (MT) post-editing in a realistic setting involving 42 professional post-editors across two translation directions. We compare four error-span highlight modalities, including supervised and uncertainty-based word-level QE methods, for identifying potential errors in the outputs of a state-of-the-art neural MT model. Post-editing effort and productivity are estimated from behavioral logs, while quality improvements are assessed by word- and segment-level human annotation. We find that domain, language and editors' speed are critical factors in determining highlights' effectiveness, with modest differences between human-made and automated QE highlights underlining a gap between accuracy and usability in professional workflows.
title QE4PE: Word-level Quality Estimation for Human Post-Editing
topic Computation and Language
Human-Computer Interaction
url https://arxiv.org/abs/2503.03044