D 2023

Evaluating Sentence Alignment Methods in a Low-Resource Setting: An English-YorùBá Study Case

SIGNORONI, Edoardo and Pavel RYCHLÝ

Basic information

Original name

Evaluating Sentence Alignment Methods in a Low-Resource Setting: An English-YorùBá Study Case

Authors

SIGNORONI, Edoardo and Pavel RYCHLÝ

Edition

Stroudsburg, PA 18360, Proceedings of the Sixth Workshop on Technologies for Machine Translation of Low-Resource Languages (LoResMT 2023), p. 123-129, 7 pp. 2023

Publisher

Association for Computational Linguistics

Other information

Language

English

Type of outcome

Proceedings paper

Country of publisher

United States of America

Confidentiality degree

is not subject to a state or trade secret

Publication form

electronic version available online

References:

URL

Marked to be transferred to RIV

No

Organization

Fakulta informatiky – Repository – Repository

ISBN

978-1-959429-55-5

DOI

https://doi.org/10.18653/v1/2023.loresmt-1.10

EID Scopus

2-s2.0-85174820343

Keywords in English

NLP;low-resource;sentence alignment

Links

LM2023062, research and development project.
Changed: 5/4/2025 00:52, RNDr. Daniel Jakubík

Abstract

In the original language

Parallel corpora are still crucial to train effective Machine Translation systems. This is even more true for low-resource language pairs, for which Neural Machine Translation has been shown to be less robust to domain mismatch and noise. Due to time and resource constraints, parallel corpora are mostly created with sentence alignment methods which automatically infer alignments. Recent work focused on state-of-the-art pre-trained sentence embeddings-based methods which are available only for a tiny fraction of the world’s languages. In this paper, we evaluate the performance of four widely used algorithms on the low-resource English-Yorùbá language pair against a multidomain benchmark parallel corpus on two experiments involving 1-to-1 alignments with and without reordering. We find that, at least for this language pair, earlier and simpler methods are more suited to the task, all the while not requiring additional data or resources. We also report that the methods we evaluated perform differently across distinct domains, thus indicating that some approach may be better for a specific domain or textual structure.
Displayed: 4/5/2026 16:17