Exploring the Correlation between Human and Machine Evaluation of Simultaneous Speech Translation

Fuente: arXiv
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Autori principali: Wang, Xiaoman, Fantinuoli, Claudio
Natura: Preprint
Pubblicazione: 2024
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author Wang, Xiaoman
Fantinuoli, Claudio
author_facet Wang, Xiaoman
Fantinuoli, Claudio
contents Assessing the performance of interpreting services is a complex task, given the nuanced nature of spoken language translation, the strategies that interpreters apply, and the diverse expectations of users. The complexity of this task become even more pronounced when automated evaluation methods are applied. This is particularly true because interpreted texts exhibit less linearity between the source and target languages due to the strategies employed by the interpreter. This study aims to assess the reliability of automatic metrics in evaluating simultaneous interpretations by analyzing their correlation with human evaluations. We focus on a particular feature of interpretation quality, namely translation accuracy or faithfulness. As a benchmark we use human assessments performed by language experts, and evaluate how well sentence embeddings and Large Language Models correlate with them. We quantify semantic similarity between the source and translated texts without relying on a reference translation. The results suggest GPT models, particularly GPT-3.5 with direct prompting, demonstrate the strongest correlation with human judgment in terms of semantic similarity between source and target texts, even when evaluating short textual segments. Additionally, the study reveals that the size of the context window has a notable impact on this correlation.
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id arxiv_https___arxiv_org_abs_2406_10091
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Exploring the Correlation between Human and Machine Evaluation of Simultaneous Speech Translation
Wang, Xiaoman
Fantinuoli, Claudio
Computation and Language
Assessing the performance of interpreting services is a complex task, given the nuanced nature of spoken language translation, the strategies that interpreters apply, and the diverse expectations of users. The complexity of this task become even more pronounced when automated evaluation methods are applied. This is particularly true because interpreted texts exhibit less linearity between the source and target languages due to the strategies employed by the interpreter. This study aims to assess the reliability of automatic metrics in evaluating simultaneous interpretations by analyzing their correlation with human evaluations. We focus on a particular feature of interpretation quality, namely translation accuracy or faithfulness. As a benchmark we use human assessments performed by language experts, and evaluate how well sentence embeddings and Large Language Models correlate with them. We quantify semantic similarity between the source and translated texts without relying on a reference translation. The results suggest GPT models, particularly GPT-3.5 with direct prompting, demonstrate the strongest correlation with human judgment in terms of semantic similarity between source and target texts, even when evaluating short textual segments. Additionally, the study reveals that the size of the context window has a notable impact on this correlation.
title Exploring the Correlation between Human and Machine Evaluation of Simultaneous Speech Translation
topic Computation and Language
url https://arxiv.org/abs/2406.10091