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arXiv 2501.13985cs.LGcs.AIcs.CV
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Pilot:构建联邦多模态指令微调框架

Pilot: Building the Federated Multimodal Instruction Tuning Framework

Institute of Automation, Chinese Academy of Sciences(中国科学院自动化研究所);Pengcheng Laboratory(鹏城实验室);School of Artificial Intelligence, University of Chinese Academy of Sciences (UCAS)(中国科学院大学人工智能学院);Harbin Institute of Technology (Shenzhen)(哈尔滨工业大学(深圳))

Baochen Xiong, Xiaoshan Yang, Yaguang Song, Yaowei Wang, Changsheng Xu

AI总结:

本文提出联邦多模态指令微调框架Pilot,通过两阶段适配器与跨任务适配器混合模块,实现跨任务协作学习,并引入自适应参数聚合策略,有效应对任务异质性。

摘要:

本文探索了一项新颖的联邦多模态指令微调任务(FedMIT),该任务对于在分布式设备上协作微调多模态大语言模型(MLLMs)具有重要意义。为解决这一新任务,我们提出了一个联邦多模态指令微调框架(Pilot)。我们的框架将两阶段的“适配器上的适配器”集成到视觉编码器与大语言模型的连接器中。在第一阶段,我们从视觉信息中提取任务特定特征和客户端特定特征。在第二阶段,我们构建跨任务适配器混合(CT-MoA)模块以执行跨任务交互。每个客户端不仅能捕获本地数据的个性化信息并学习与任务相关的多模态信息,还能从其他任务中学习通用知识。此外,我们引入了一种针对文本训练参数的自适应参数聚合策略,该策略通过基于参数之间的欧几里得距离计算权重来优化参数聚合,从而使参数聚合能够最大程度地从正面效应中获益,同时有效减少负面效应。我们的框架能够协作利用来自不同本地客户端的分布式数据来学习跨任务知识,而不会在指令微调期间受到任务异质性的影响。我们方法的有效性在两个不同的跨任务场景中得到了验证。

英文摘要:

In this paper, we explore a novel federated multimodal instruction tuning task(FedMIT), which is significant for collaboratively fine-tuning MLLMs on different types of multimodal instruction data on distributed devices. To solve the new task, we propose a federated multimodal instruction tuning framework(Pilot). Our framework integrates two stages of "adapter on adapter" into the connector of the vision encoder and the LLM. In stage 1, we extract task-specific features and client-specific features from visual information. In stage 2, we build the cross-task Mixture-of-Adapters(CT-MoA) module to perform cross-task interaction. Each client can not only capture personalized information of local data and learn task-related multimodal information, but also learn general knowledge from other tasks. In addition, we introduce an adaptive parameter aggregation strategy for text training parameters, which optimizes parameter aggregation by calculating weights based on the euclidean distance between parameters, so that parameter aggregation can benefit from positive effects to the greatest extent while effectively reducing negative effects. Our framework can collaboratively exploit distributed data from different local clients to learn cross-task knowledge without being affected by the task heterogeneity during instruction tuning. The effectiveness of our method is verified in two different cross-task scenarios.

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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