In Internet of vehicles(IoV)scenario,there was a massive amount of non-independent and identically distrib-uted data among devices,leading to data heterogeneity problems of federated learning(FL).This problem affected the performances of model training and might pose threats to traffic safety.Therefore,the focus lied on the data heterogene-ity problem of FL in IoV,the personalized solution system and new research ideas were proposed through problem attri-bution.Firstly,the necessity of applying FL to IoV was discussed.Through an examination of current applications,identi-fied the data heterogeneity problems of FL in IoV.Secondly,classified and traced the data heterogeneity problems of FL in IoV,from the perspective of perception,computation,and transmission respectively.Thirdly,personalized methods were introduced as the core approaches to address the data heterogeneity problems of FL in IoV,and analyzed the advan-tages and disadvantages of existing personalized federated learning(PFL).Finally,the challenges encountered by PFL in IoV were outlined,along with the future research prospection related to advanced technologies on wireless communica-tions.
关键词
车联网/联邦学习/个性化方法/数据异质性
Key words
Internet of vehicles/federated learning/personalized solution/data heterogeneity
维普
万方数据