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arXiv 2404.09339cs.CLcs.AIcs.LG

面向持续学习大语言模型的实用工具使用研究

Towards Practical Tool Usage for Continually Learning LLMs

Mila - Quebec AI Institute(米拉-魁北克人工智能研究所);Université de Montréal(蒙特利尔大学);Polytechnique Montréal(蒙特利尔理工学院)

Jerry Huang, Prasanna Parthasarathi, Mehdi Rezagholizadeh, Sarath Chandar

AI总结:

该研究针对大语言模型知识静态易过时的问题,提出工具使用更适配持续学习的假设,通过合成基准与现实NLP任务场景验证,发现持续学习技术可让工具型LLM适配更快、遗忘更少。

摘要:

大语言模型(LLM)具备解决语言类任务的先天能力,但研究表明,由于其直接存储在参数中的知识在时间上保持静态,它们无法应对信息或任务解决技能过时的问题。工具使用通过将工作卸载到LLM可通过接口访问的系统来提供帮助,但使用工具的LLM若要长期使用,仍需适应非平稳环境,因为新工具可能出现,现有工具也可能发生变化。不过,工具所需的专业知识更少,因此我们假设它们更适合持续学习(CL),因为它们在解决任务时对参数记忆的依赖更低,转而专注于学习何时应用预定义工具。为验证这一点,我们构建了一个合成基准,随后整合现有自然语言处理(NLP)任务,形成了更贴近现实的测试场景。我们的研究表明,无论是否使用工具,扩大模型规模都不是解决方案,而持续学习技术能够让工具型LLM既更快适应环境,又减少遗忘,凸显了其作为持续学习者的潜力。

英文摘要:

Large language models (LLMs) show an innate skill for solving language based tasks. But insights have suggested an inability to adjust for information or task-solving skills becoming outdated, as their knowledge, stored directly within their parameters, remains static in time. Tool use helps by offloading work to systems that the LLM can access through an interface, but LLMs that use them still must adapt to nonstationary environments for prolonged use, as new tools can emerge and existing tools can change. Nevertheless, tools require less specialized knowledge, therefore we hypothesize they are better suited for continual learning (CL) as they rely less on parametric memory for solving tasks and instead focus on learning when to apply pre-defined tools. To verify this, we develop a synthetic benchmark and follow this by aggregating existing NLP tasks to form a more realistic testing scenario. While we demonstrate scaling model size is not a solution, regardless of tool usage, continual learning techniques can enable tool LLMs to both adapt faster while forgetting less, highlighting their potential as continual learners.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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