Rephrase and Respond: Let Large Language Models Ask Better Questions for Themselves

Authors: Yihe Deng, Weitong Zhang, Zixiang Chen, Quanquan Gu

32 pages, 9 figures, 22 tables

Results of the summarizing process for the arXiv paper: 2311.04205v1

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In the paper titled "Rephrase and Respond: Let Large Language Models Ask Better Questions for Themselves," authors Yihe Deng, Weitong Zhang, Zixiang Chen, and Quanquan Gu address the issue of misunderstandings that can arise between humans and Large Language Models (LLMs). These misunderstandings can lead to LLMs interpreting questions in unexpected ways and providing incorrect responses. To address this gap, the authors propose a method called "Rephrase and Respond" (RaR), which allows LLMs to rephrase and expand questions posed by humans and provide responses in a single prompt. This approach serves as a simple yet effective prompting method for improving LLM performance. Additionally, the authors introduce a two-step variant of RaR where a rephrasing LLM first rephrases the question before passing both the original and rephrased questions to a different responding LLM. This enables the effective utilization of rephrased questions generated by one LLM with another. The experiments conducted by the authors demonstrate that their methods significantly enhance the performance of various models across different tasks. Furthermore, they provide a comprehensive comparison between RaR and the popular Chain-of-Thought (CoT) methods both theoretically and empirically. The results show that RaR is complementary to CoT and can be combined with it to achieve even better performance. Overall, this paper contributes to enhancing LLM performance efficiently while also shedding light on fair evaluation practices for assessing LLM capabilities. The authors make their data and codes available on GitHub for further exploration.
AI-generated keywords: Large Language Models Rephrase and Respond Chain-of-Thought Performance Enhancement Fair Evaluation

AI-generated Key Points

  • Authors address the issue of misunderstandings between humans and Large Language Models (LLMs)
  • Proposed method called "Rephrase and Respond" (RaR) allows LLMs to rephrase and expand questions posed by humans
  • RaR serves as a simple yet effective prompting method for improving LLM performance
  • Two-step variant of RaR introduced, where a rephrasing LLM first rephrases the question before passing it to a different responding LLM
  • Experiments demonstrate significant enhancement in performance across different tasks using RaR
  • Comprehensive comparison between RaR and Chain-of-Thought (CoT) methods shows complementarity and potential for combined use
  • Paper contributes to enhancing LLM performance efficiently and highlights fair evaluation practices
  • Data and codes available on GitHub for further exploration.
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Abstract: Misunderstandings arise not only in interpersonal communication but also between humans and Large Language Models (LLMs). Such discrepancies can make LLMs interpret seemingly unambiguous questions in unexpected ways, yielding incorrect responses. While it is widely acknowledged that the quality of a prompt, such as a question, significantly impacts the quality of the response provided by LLMs, a systematic method for crafting questions that LLMs can better comprehend is still underdeveloped. In this paper, we present a method named `Rephrase and Respond' (RaR), which allows LLMs to rephrase and expand questions posed by humans and provide responses in a single prompt. This approach serves as a simple yet effective prompting method for improving performance. We also introduce a two-step variant of RaR, where a rephrasing LLM first rephrases the question and then passes the original and rephrased questions together to a different responding LLM. This facilitates the effective utilization of rephrased questions generated by one LLM with another. Our experiments demonstrate that our methods significantly improve the performance of different models across a wide range to tasks. We further provide a comprehensive comparison between RaR and the popular Chain-of-Thought (CoT) methods, both theoretically and empirically. We show that RaR is complementary to CoT and can be combined with CoT to achieve even better performance. Our work not only contributes to enhancing LLM performance efficiently and effectively but also sheds light on a fair evaluation of LLM capabilities. Data and codes are available at https://github.com/uclaml/Rephrase-and-Respond.

Submitted to arXiv on 07 Nov. 2023

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