METAL: Towards Multilingual Meta-Evaluation

Fuente: arXiv
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Hauptverfasser: Hada, Rishav, Gumma, Varun, Ahmed, Mohamed, Bali, Kalika, Sitaram, Sunayana
Format: Preprint
Veröffentlicht: 2024
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author Hada, Rishav
Gumma, Varun
Ahmed, Mohamed
Bali, Kalika
Sitaram, Sunayana
author_facet Hada, Rishav
Gumma, Varun
Ahmed, Mohamed
Bali, Kalika
Sitaram, Sunayana
contents With the rising human-like precision of Large Language Models (LLMs) in numerous tasks, their utilization in a variety of real-world applications is becoming more prevalent. Several studies have shown that LLMs excel on many standard NLP benchmarks. However, it is challenging to evaluate LLMs due to test dataset contamination and the limitations of traditional metrics. Since human evaluations are difficult to collect, there is a growing interest in the community to use LLMs themselves as reference-free evaluators for subjective metrics. However, past work has shown that LLM-based evaluators can exhibit bias and have poor alignment with human judgments. In this study, we propose a framework for an end-to-end assessment of LLMs as evaluators in multilingual scenarios. We create a carefully curated dataset, covering 10 languages containing native speaker judgments for the task of summarization. This dataset is created specifically to evaluate LLM-based evaluators, which we refer to as meta-evaluation (METAL). We compare the performance of LLM-based evaluators created using GPT-3.5-Turbo, GPT-4, and PaLM2. Our results indicate that LLM-based evaluators based on GPT-4 perform the best across languages, while GPT-3.5-Turbo performs poorly. Additionally, we perform an analysis of the reasoning provided by LLM-based evaluators and find that it often does not match the reasoning provided by human judges.
format Preprint
id arxiv_https___arxiv_org_abs_2404_01667
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle METAL: Towards Multilingual Meta-Evaluation
Hada, Rishav
Gumma, Varun
Ahmed, Mohamed
Bali, Kalika
Sitaram, Sunayana
Computation and Language
With the rising human-like precision of Large Language Models (LLMs) in numerous tasks, their utilization in a variety of real-world applications is becoming more prevalent. Several studies have shown that LLMs excel on many standard NLP benchmarks. However, it is challenging to evaluate LLMs due to test dataset contamination and the limitations of traditional metrics. Since human evaluations are difficult to collect, there is a growing interest in the community to use LLMs themselves as reference-free evaluators for subjective metrics. However, past work has shown that LLM-based evaluators can exhibit bias and have poor alignment with human judgments. In this study, we propose a framework for an end-to-end assessment of LLMs as evaluators in multilingual scenarios. We create a carefully curated dataset, covering 10 languages containing native speaker judgments for the task of summarization. This dataset is created specifically to evaluate LLM-based evaluators, which we refer to as meta-evaluation (METAL). We compare the performance of LLM-based evaluators created using GPT-3.5-Turbo, GPT-4, and PaLM2. Our results indicate that LLM-based evaluators based on GPT-4 perform the best across languages, while GPT-3.5-Turbo performs poorly. Additionally, we perform an analysis of the reasoning provided by LLM-based evaluators and find that it often does not match the reasoning provided by human judges.
title METAL: Towards Multilingual Meta-Evaluation
topic Computation and Language
url https://arxiv.org/abs/2404.01667