Establishing Vocabulary Tests as a Benchmark for Evaluating Large Language Models

• URL: http://arxiv.org/abs/2310.14703v2
• Date: Mon, 29 Jan 2024 09:26:36 GMT
• Title: Establishing Vocabulary Tests as a Benchmark for Evaluating Large Language Models
• Authors: Gonzalo Mart\'inez, Javier Conde, Elena Merino-G\'omez, Beatriz Berm\'udez-Margaretto, Jos\'e Alberto Hern\'andez, Pedro Reviriego, Marc Brysbaert
• Abstract summary: We advocate for the revival of vocabulary tests as a valuable tool for assessing Large Language Models (LLMs) performance. We evaluate seven LLMs using two vocabulary test formats across two languages and uncover surprising gaps in their lexical knowledge.
• Score: 2.7013338932521416
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Vocabulary tests, once a cornerstone of language modeling evaluation, have been largely overlooked in the current landscape of Large Language Models (LLMs) like Llama, Mistral, and GPT. While most LLM evaluation benchmarks focus on specific tasks or domain-specific knowledge, they often neglect the fundamental linguistic aspects of language understanding and production. In this paper, we advocate for the revival of vocabulary tests as a valuable tool for assessing LLM performance. We evaluate seven LLMs using two vocabulary test formats across two languages and uncover surprising gaps in their lexical knowledge. These findings shed light on the intricacies of LLM word representations, their learning mechanisms, and performance variations across models and languages. Moreover, the ability to automatically generate and perform vocabulary tests offers new opportunities to expand the approach and provide a more complete picture of LLMs' language skills.

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