Chinese Journal on Internet of Things ›› 2019, Vol. 3 ›› Issue (3): 18-25.doi: 10.11959/j.issn.2096-3750.2019.00116

• Theory and Technology • Previous Articles     Next Articles

Short-term traffic flow prediction based on adaptive rank dynamic tensor analysis

Lingchao HE,Dong LIN,Xinxin FENG()   

  1. School of Physics and Information Engineering,Fuzhou University,Fuzhou 350108,China
  • Revised:2019-04-18 Online:2019-09-30 Published:2019-10-14
  • Supported by:
    The National Natural Science Foundation of China(61601126);The National Natural Science Foundation of China(61571129)

Abstract:

Short-term traffic flow prediction in intelligent transportation system can provide data support in areas such as route planning,traffic management,public safety and so on.In order to improve the prediction accuracy with missing and abnormal data,a short-term traffic flow prediction method based on the adaptive rank dynamic tensor analysis was proposed.Firstly,a four dimensional tensor consisted of week,day,time and space was constructed,which could excavate the multimodal correlation of traffic flow data.Secondly,tensor flow data with dynamic structure was formed by using sliding window model.The principal component analysis (PCA) algorithm was extended to an offline tensor analysis algorithm that could accept tensor input.Then the adaptive rank and the forgetting factor were introduced to generate an adaptive rank dynamic tensor analysis algorithm.Finally,the tensor stream data was inputted into the adaptive rank dynamic tensor analysis algorithm to realize the short-term traffic flow prediction.The experimental results show that a good prediction can be achieved even with data missing.

Key words: short-term traffic flow prediction, data missing, dynamic tensor analysis, multimodal information

CLC Number: 

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