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Main Authors: Robinson, Nathaniel R., Abdelmoneim, Shahd, Marchisio, Kelly, Ruder, Sebastian
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2412.04193
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author Robinson, Nathaniel R.
Abdelmoneim, Shahd
Marchisio, Kelly
Ruder, Sebastian
author_facet Robinson, Nathaniel R.
Abdelmoneim, Shahd
Marchisio, Kelly
Ruder, Sebastian
contents Dialectal Arabic (DA) varieties are under-served by language technologies, particularly large language models (LLMs). This trend threatens to exacerbate existing social inequalities and limits LLM applications, yet the research community lacks operationalized performance measurements in DA. We present a framework that comprehensively assesses LLMs' DA modeling capabilities across four dimensions: fidelity, understanding, quality, and diglossia. We evaluate nine LLMs in eight DA varieties and provide practical recommendations. Our evaluation suggests that LLMs do not produce DA as well as they understand it, not because their DA fluency is poor, but because they are reluctant to generate DA. Further analysis suggests that current post-training can contribute to bias against DA, that few-shot examples can overcome this deficiency, and that otherwise no measurable features of input text correlate well with LLM DA performance.
format Preprint
id arxiv_https___arxiv_org_abs_2412_04193
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle AL-QASIDA: Analyzing LLM Quality and Accuracy Systematically in Dialectal Arabic
Robinson, Nathaniel R.
Abdelmoneim, Shahd
Marchisio, Kelly
Ruder, Sebastian
Computation and Language
Dialectal Arabic (DA) varieties are under-served by language technologies, particularly large language models (LLMs). This trend threatens to exacerbate existing social inequalities and limits LLM applications, yet the research community lacks operationalized performance measurements in DA. We present a framework that comprehensively assesses LLMs' DA modeling capabilities across four dimensions: fidelity, understanding, quality, and diglossia. We evaluate nine LLMs in eight DA varieties and provide practical recommendations. Our evaluation suggests that LLMs do not produce DA as well as they understand it, not because their DA fluency is poor, but because they are reluctant to generate DA. Further analysis suggests that current post-training can contribute to bias against DA, that few-shot examples can overcome this deficiency, and that otherwise no measurable features of input text correlate well with LLM DA performance.
title AL-QASIDA: Analyzing LLM Quality and Accuracy Systematically in Dialectal Arabic
topic Computation and Language
url https://arxiv.org/abs/2412.04193