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arXiv 2404.09331cs.ROcs.AIcs.LGcs.NE

SNN4Agents:面向自主智能体的能效型具身脉冲神经网络开发框架

SNN4Agents: A Framework for Developing Energy-Efficient Embodied Spiking Neural Networks for Autonomous Agents

New York University (NYU) Abu Dhabi(纽约大学阿布扎比分校)

Rachmad Vidya Wicaksana Putra, Alberto Marchisio, Muhammad Shafique

AI总结:

针对自主智能体低功耗需求,提出SNN4Agents框架,通过权重量化等三种优化技术,在NCARS数据集上实现高精度下的内存、延迟、能效显著提升,推动具身SNN高效部署。

摘要:

近期研究趋势表明,自主地面车辆(AGV)、无人机(UAV)、移动机器人等自主智能体能有效提升人类完成各类任务的生产力。但这类智能体通常由便携式电池供电,需要极低的功耗/能耗才能实现长寿命运行。为解决这一难题,神经形态计算已成为颇具前景的方案:受生物启发的脉冲神经网络(SNN)利用来自事件相机的脉冲或数据转换预处理结果,高效执行稀疏计算。然而,面向自主智能体的SNN部署研究仍处于早期阶段,实现高效具身SNN部署的优化阶段尚未得到系统定义。为此,我们提出了名为SNN4Agents的新型框架,该框架包含一组优化技术,用于设计面向自主智能体应用的能效型具身SNN。SNN4Agents采用权重量化、时间步缩减和注意力窗口缩减三种技术,在保持高精度的同时,共同提升能效、减少内存占用、优化处理延迟。在评估环节,我们研究了基于事件的汽车识别用例,并探索了准确率、延迟、内存与能耗之间的权衡关系。实验结果显示,在NCARS数据集上,与现有最优工作相比,所提框架能保持84.12%的高精度,同时节省68.75%的内存,实现3.58倍的速度提升与4.03倍的能效提升。综上,SNN4Agents框架为实现自主智能体的能效型具身SNN部署铺平了道路。

英文摘要:

Recent trends have shown that autonomous agents, such as Autonomous Ground Vehicles (AGVs), Unmanned Aerial Vehicles (UAVs), and mobile robots, effectively improve human productivity in solving diverse tasks. However, since these agents are typically powered by portable batteries, they require extremely low power/energy consumption to operate in a long lifespan. To solve this challenge, neuromorphic computing has emerged as a promising solution, where bio-inspired Spiking Neural Networks (SNNs) use spikes from event-based cameras or data conversion pre-processing to perform sparse computations efficiently. However, the studies of SNN deployments for autonomous agents are still at an early stage. Hence, the optimization stages for enabling efficient embodied SNN deployments for autonomous agents have not been defined systematically. Toward this, we propose a novel framework called SNN4Agents that consists of a set of optimization techniques for designing energy-efficient embodied SNNs targeting autonomous agent applications. Our SNN4Agents employs weight quantization, timestep reduction, and attention window reduction to jointly improve the energy efficiency, reduce the memory footprint, optimize the processing latency, while maintaining high accuracy. In the evaluation, we investigate use cases of event-based car recognition, and explore the trade-offs among accuracy, latency, memory, and energy consumption. The experimental results show that our proposed framework can maintain high accuracy (i.e., 84.12% accuracy) with 68.75% memory saving, 3.58x speed-up, and 4.03x energy efficiency improvement as compared to the state-of-the-art work for NCARS dataset. In this manner, our SNN4Agents framework paves the way toward enabling energy-efficient embodied SNN deployments for autonomous agents.

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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