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Optimizing example selection for retrieval-augmented machine translation with translation memories

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arxiv 2405.15070 v1 pith:NTGNL6ED submitted 2024-05-23 cs.CL

Optimizing example selection for retrieval-augmented machine translation with translation memories

classification cs.CL
keywords translationexamplesmachinecoverageretrieval-augmentedtaskalgorithmscondition
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Retrieval-augmented machine translation leverages examples from a translation memory by retrieving similar instances. These examples are used to condition the predictions of a neural decoder. We aim to improve the upstream retrieval step and consider a fixed downstream edit-based model: the multi-Levenshtein Transformer. The task consists of finding a set of examples that maximizes the overall coverage of the source sentence. To this end, we rely on the theory of submodular functions and explore new algorithms to optimize this coverage. We evaluate the resulting performance gains for the machine translation task.

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