arXiv:2507.05346cs.CLcs.AI2025-07被引 7

无需训练即可高效调用多个任务专家模型,提升知识密集型任务表现。

LoRA-Augmented Generation (LAG) for Knowledge-Intensive Language Tasks

  • 基于分词和层的动态筛选机制,按需调用适配器
  • 在无额外数据条件下超越现有方法,在多个任务上表现更优
  • 适合需要快速集成领域专家的场景,兼容检索增强生成

针对特定任务和领域的微调语言模型专家日益增多,亟需高效的选取与组合方法。我们提出无需额外训练或数据访问的LoRA-Augmented Generation(LAG),用于利用大规模知识库和任务特定的LoRA适配器。LAG可对每个标记和网络层进行高效过滤、检索与应用专家模型。我们在多种知识密集型任务上评估了LAG,结果表明其性能优于现有无数据方法。同时,我们探讨了有额外数据时的场景,验证了LAG与检索增强生成(RAG)等方案的兼容性。

原文摘要 · Abstract (English)

The proliferation of fine-tuned language model experts for specific tasks and domains signals the need for efficient selection and combination methods. We propose LoRA-Augmented Generation (LAG) for leveraging large libraries of knowledge and task-specific LoRA adapters. LAG requires no additional training or access to data, and efficiently filters, retrieves, and applies experts on a per-token and layer basis. We evaluate LAG on various knowledge-intensive tasks, achieving superior performance over existing data-free methods. We explore scenarios where additional data is available, demonstrating LAG's compatibility with alternative solutions such as retrieval-augmented generation (RAG).

LoRA知识增强零样本模型集成

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