Connecting Large Language Models with Evolutionary Algorithms Yields Powerful Prompt Optimizers

التفاصيل البيبلوغرافية
العنوان: Connecting Large Language Models with Evolutionary Algorithms Yields Powerful Prompt Optimizers
المؤلفون: Guo, Qingyan, Wang, Rui, Guo, Junliang, Li, Bei, Song, Kaitao, Tan, Xu, Liu, Guoqing, Bian, Jiang, Yang, Yujiu
سنة النشر: 2023
المجموعة: Computer Science
مصطلحات موضوعية: Computer Science - Computation and Language, Computer Science - Artificial Intelligence
الوصف: Large Language Models (LLMs) excel in various tasks, but they rely on carefully crafted prompts that often demand substantial human effort. To automate this process, in this paper, we propose a novel framework for discrete prompt optimization, called EvoPrompt, which borrows the idea of evolutionary algorithms (EAs) as they exhibit good performance and fast convergence. To enable EAs to work on discrete prompts, which are natural language expressions that need to be coherent and human-readable, we connect LLMs with EAs. This approach allows us to simultaneously leverage the powerful language processing capabilities of LLMs and the efficient optimization performance of EAs. Specifically, abstaining from any gradients or parameters, EvoPrompt starts from a population of prompts and iteratively generates new prompts with LLMs based on the evolutionary operators, improving the population based on the development set. We optimize prompts for both closed- and open-source LLMs including GPT-3.5 and Alpaca, on 31 datasets covering language understanding, generation tasks, as well as BIG-Bench Hard (BBH) tasks. EvoPrompt significantly outperforms human-engineered prompts and existing methods for automatic prompt generation (e.g., up to 25% on BBH). Furthermore, EvoPrompt demonstrates that connecting LLMs with EAs creates synergies, which could inspire further research on the combination of LLMs and conventional algorithms.
Comment: International Conference on Learning Representations (ICLR) 2024
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2309.08532
رقم الأكسشن: edsarx.2309.08532
قاعدة البيانات: arXiv