Large Language Models Might Not Care What You Are Saying: Prompt Format Beats Descriptions

Fuente: arXiv
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Main Authors: Tang, Chenming, Wang, Zhixiang, Sun, Hao, Wu, Yunfang
Format: Preprint
Published: 2024
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author Tang, Chenming
Wang, Zhixiang
Sun, Hao
Wu, Yunfang
author_facet Tang, Chenming
Wang, Zhixiang
Sun, Hao
Wu, Yunfang
contents With the help of in-context learning (ICL), large language models (LLMs) have achieved impressive performance across various tasks. However, the function of descriptive instructions during ICL remains under-explored. In this work, we propose an ensemble prompt framework to describe the selection criteria of multiple in-context examples, and preliminary experiments on machine translation (MT) across six translation directions confirm that this framework boosts ICL performance. But to our surprise, LLMs might not care what the descriptions actually say, and the performance gain is primarily caused by the ensemble format, since it could lead to improvement even with random descriptive nouns. We further apply this new ensemble framework on a range of commonsense, math, logical reasoning and hallucination tasks with three LLMs and achieve promising results, suggesting again that designing a proper prompt format would be much more effective and efficient than paying effort into specific descriptions.
format Preprint
id arxiv_https___arxiv_org_abs_2408_08780
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Large Language Models Might Not Care What You Are Saying: Prompt Format Beats Descriptions
Tang, Chenming
Wang, Zhixiang
Sun, Hao
Wu, Yunfang
Computation and Language
With the help of in-context learning (ICL), large language models (LLMs) have achieved impressive performance across various tasks. However, the function of descriptive instructions during ICL remains under-explored. In this work, we propose an ensemble prompt framework to describe the selection criteria of multiple in-context examples, and preliminary experiments on machine translation (MT) across six translation directions confirm that this framework boosts ICL performance. But to our surprise, LLMs might not care what the descriptions actually say, and the performance gain is primarily caused by the ensemble format, since it could lead to improvement even with random descriptive nouns. We further apply this new ensemble framework on a range of commonsense, math, logical reasoning and hallucination tasks with three LLMs and achieve promising results, suggesting again that designing a proper prompt format would be much more effective and efficient than paying effort into specific descriptions.
title Large Language Models Might Not Care What You Are Saying: Prompt Format Beats Descriptions
topic Computation and Language
url https://arxiv.org/abs/2408.08780