arXiv:2411.12469eess.SPcs.AI2024-11中稿 · IEEE Network Magaz…被引 60

让AI在边缘网络中高效流动,解决低资源设备推理难题

AI Flow at the Network Edge

  • 将AI推理任务按需分配到设备、边缘与云端协同执行
  • 图像生成任务中响应延迟显著降低,保持高质量输出
  • 适合研究网络智能协同与边缘计算的开发者

大型语言模型及其多模态变体在多个领域取得显著进展,展现出巨大潜力。在无处不在的连接时代,将智能分布于通信网络中,使AI服务可在网络边缘获取,是一种变革性理念。然而,将大模型从云端推向资源受限环境面临严峻挑战:低端设备上的模型推理导致高延迟和性能瓶颈,而有限带宽网络上传输原始数据则带来高通信开销。本文提出AI Flow框架,通过协同利用设备、边缘节点和云服务器的异构资源,实现智能在网络中的流畅迁移。为促进多计算节点协作,该框架推动通信系统设计范式转变——从传递信息流转向传递智能流,通信目标变为任务导向并融入推理过程。实验结果以图像字幕生成为例,验证了框架有效性:在保持高质量字幕的同时显著降低响应延迟。本文作为立场论文,旨在阐明AI Flow的动机、挑战与核心原则。

原文摘要 · Abstract (English)

Recent advancements in large language models (LLMs) and their multimodal variants have led to remarkable progress across various domains, demonstrating impressive capabilities and unprecedented potential. In the era of ubiquitous connectivity, leveraging communication networks to distribute intelligence is a transformative concept, envisioning AI-powered services accessible at the network edge. However, pushing large models from the cloud to resource-constrained environments faces critical challenges. Model inference on low-end devices leads to excessive latency and performance bottlenecks, while raw data transmission over limited bandwidth networks causes high communication overhead. This article presents AI Flow, a framework that streamlines the inference process by jointly leveraging the heterogeneous resources available across devices, edge nodes, and cloud servers, making intelligence flow across networks. To facilitate cooperation among multiple computational nodes, the proposed framework explores a paradigm shift in the design of communication network systems from transmitting information flow to intelligence flow, where the goal of communications is task-oriented and folded into the inference process. Experimental results demonstrate the effectiveness of the proposed framework through an image captioning use case, showcasing the ability to reduce response latency while maintaining high-quality captions. This article serves as a position paper for identifying the motivation, challenges, and principles of AI Flow.

边缘计算AI协同模型部署

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