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arXiv 2103.03786cs.LGcs.AIcs.MA
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基于联邦学习的智能网联汽车分布式动态地图融合

Distributed Dynamic Map Fusion via Federated Learning for Intelligent Networked Vehicles

Southern University of Science and Technology(南方科技大学);Sifakis Research Institute of Trustworthy Autonomous Systems(思法基可信自主系统研究院);Pazhou Lab(琶洲实验室);Harbin Institute of Technology(哈尔滨工业大学)

Zijian Zhang, Shuai Wang, Yuncong Hong, Liangkai Zhou, Qi Hao

摘要:

网络车辆之间的动态地图融合技术已经发展到扩大传感范围和提高单个车辆的传感精度。本文提出了一种基于联邦学习(FL)的动态地图融合框架,以实现高质量的地图,尽管在视场(FoVs)中的对象数量未知,各种传感和模型的不确定性,以及在线学习丢失的数据标签。这项工作的新颖性有三个方面:(1)开发了一个三阶段融合方案,以有效地预测对象的数量,并将多个局部地图与保真度分数融合;(2)开发了一种FL算法,该算法可以微调特征模型(即,特征提取的表示学习网络);(3)开发一种知识蒸馏方法,当数据标签不可用时生成FL训练标签。该框架在汽车学习行动(CARLA)仿真平台上实现。提供了大量的实验结果来验证开发的地图融合和FL计划的优越性能和鲁棒性。

英文摘要:

The technology of dynamic map fusion among networked vehicles has been developed to enlarge sensing ranges and improve sensing accuracies for individual vehicles. This paper proposes a federated learning (FL) based dynamic map fusion framework to achieve high map quality despite unknown numbers of objects in fields of view (FoVs), various sensing and model uncertainties, and missing data labels for online learning. The novelty of this work is threefold: (1) developing a three-stage fusion scheme to predict the number of objects effectively and to fuse multiple local maps with fidelity scores; (2) developing an FL algorithm which fine-tunes feature models (i.e., representation learning networks for feature extraction) distributively by aggregating model parameters; (3) developing a knowledge distillation method to generate FL training labels when data labels are unavailable. The proposed framework is implemented in the Car Learning to Act (CARLA) simulation platform. Extensive experimental results are provided to verify the superior performance and robustness of the developed map fusion and FL schemes.

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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