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Quality Estimation with $k$-nearest Neighbors and Automatic Evaluation for Model-specific Quality Estimation
April 30, 2024, 4:50 a.m. | Tu Anh Dinh, Tobias Palzer, Jan Niehues
cs.CL updates on arXiv.org arxiv.org
Abstract: Providing quality scores along with Machine Translation (MT) output, so-called reference-free Quality Estimation (QE), is crucial to inform users about the reliability of the translation. We propose a model-specific, unsupervised QE approach, termed $k$NN-QE, that extracts information from the MT model's training data using $k$-nearest neighbors. Measuring the performance of model-specific QE is not straightforward, since they provide quality scores on their own MT output, thus cannot be evaluated using benchmark QE test sets containing …
abstract arxiv cs.cl data evaluation free information machine machine translation neighbors quality reference reliability training training data translation type unsupervised
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