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Main Authors: Wang, Qihan, Pan, Shidong, Linzen, Tal, Black, Emily
Format: Preprint
Published: 2025
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Online Access:https://arxiv.org/abs/2505.15229
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author Wang, Qihan
Pan, Shidong
Linzen, Tal
Black, Emily
author_facet Wang, Qihan
Pan, Shidong
Linzen, Tal
Black, Emily
contents Large Language Models (LLMs) are known to lack cultural representation and overall diversity in their generations, from expressing opinions to answering factual questions. To mitigate this problem, we propose multilingual prompting: a prompting method which generates several variations of a base prompt with added cultural and linguistic cues from several cultures, generates responses, and then combines the results. Building on evidence that LLMs have language-specific knowledge, multilingual prompting seeks to increase diversity by activating a broader range of cultural knowledge embedded in model training data. Through experiments across multiple models (GPT-4o, GPT-4o-mini, LLaMA 70B, and LLaMA 8B), we show that multilingual prompting consistently outperforms existing diversity-enhancing techniques such as high-temperature sampling, step-by-step recall, and persona prompting. Further analyses show that the benefits of multilingual prompting vary between high and low resource languages and across model sizes, and that aligning the prompting language with cultural cues reduces hallucination about culturally-specific information.
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id arxiv_https___arxiv_org_abs_2505_15229
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Multilingual Prompting for Improving LLM Generation Diversity
Wang, Qihan
Pan, Shidong
Linzen, Tal
Black, Emily
Computation and Language
Computers and Society
Large Language Models (LLMs) are known to lack cultural representation and overall diversity in their generations, from expressing opinions to answering factual questions. To mitigate this problem, we propose multilingual prompting: a prompting method which generates several variations of a base prompt with added cultural and linguistic cues from several cultures, generates responses, and then combines the results. Building on evidence that LLMs have language-specific knowledge, multilingual prompting seeks to increase diversity by activating a broader range of cultural knowledge embedded in model training data. Through experiments across multiple models (GPT-4o, GPT-4o-mini, LLaMA 70B, and LLaMA 8B), we show that multilingual prompting consistently outperforms existing diversity-enhancing techniques such as high-temperature sampling, step-by-step recall, and persona prompting. Further analyses show that the benefits of multilingual prompting vary between high and low resource languages and across model sizes, and that aligning the prompting language with cultural cues reduces hallucination about culturally-specific information.
title Multilingual Prompting for Improving LLM Generation Diversity
topic Computation and Language
Computers and Society
url https://arxiv.org/abs/2505.15229