Retrieving Examples from Memory for Retrieval Augmented Neural Machine Translation: A Systematic Comparison

Fuente: arXiv
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Auteurs principaux: Bouthors, Maxime, Crego, Josep, Yvon, Francois
Format: Preprint
Publié: 2024
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author Bouthors, Maxime
Crego, Josep
Yvon, Francois
author_facet Bouthors, Maxime
Crego, Josep
Yvon, Francois
contents Retrieval-Augmented Neural Machine Translation (RAMT) architectures retrieve examples from memory to guide the generation process. While most works in this trend explore new ways to exploit the retrieved examples, the upstream retrieval step is mostly unexplored. In this paper, we study the effect of varying retrieval methods for several translation architectures, to better understand the interplay between these two processes. We conduct experiments in two language pairs in a multi-domain setting and consider several downstream architectures based on a standard autoregressive model, an edit-based model, and a large language model with in-context learning. Our experiments show that the choice of the retrieval technique impacts the translation scores, with variance across architectures. We also discuss the effects of increasing the number and diversity of examples, which are mostly positive across the board.
format Preprint
id arxiv_https___arxiv_org_abs_2404_02835
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Retrieving Examples from Memory for Retrieval Augmented Neural Machine Translation: A Systematic Comparison
Bouthors, Maxime
Crego, Josep
Yvon, Francois
Computation and Language
Retrieval-Augmented Neural Machine Translation (RAMT) architectures retrieve examples from memory to guide the generation process. While most works in this trend explore new ways to exploit the retrieved examples, the upstream retrieval step is mostly unexplored. In this paper, we study the effect of varying retrieval methods for several translation architectures, to better understand the interplay between these two processes. We conduct experiments in two language pairs in a multi-domain setting and consider several downstream architectures based on a standard autoregressive model, an edit-based model, and a large language model with in-context learning. Our experiments show that the choice of the retrieval technique impacts the translation scores, with variance across architectures. We also discuss the effects of increasing the number and diversity of examples, which are mostly positive across the board.
title Retrieving Examples from Memory for Retrieval Augmented Neural Machine Translation: A Systematic Comparison
topic Computation and Language
url https://arxiv.org/abs/2404.02835