The invention provides a traffic data filling method and system, a storage medium and a terminal. The method comprises the following steps: constructing a traffic flow tensor according to traffic data, and pre-filling the traffic flow tensor to obtain a pre-filled traffic flow tensor; performing principal component extraction on the pre-filled traffic flow tensor to obtain a principal component tensor and a residual tensor; carrying out tensor decomposition on the principal component tensor and the residual tensor to obtain a filled traffic flow tensor. The invention provides a traffic data filling method based on combination of principal component extraction and tensor decomposition. The data rule in the traffic data which are not missing can be extracted, the missing data are restored according to the internal rule of the data; and the method can face various traffic scenes and different traffic data and can adapt to different traffic data missing modes.
本发明提供一种交通数据填充方法、系统、存储介质及终端;所述方法包括以下步骤:根据交通数据构建交通流张量,并对交通流张量进行预填充,获取预填充后的交通流张量;对预填充后的交通流张量进行主成分提取,获取主成分张量和残差张量;对主成分张量和残差张量分别进行张量分解,以获取填充后的交通流张量;本发明提出了一种基于主成分提取与张量分解相结合的交通数据填充方法,能够提取未缺失交通数据中的数据规律,并根据其数据的内部规律对缺失的数据进行还原,该方法能够面向各种交通场景和不同的交通数据,同时能够适应不同的交通数据缺失模式。
Traffic data filling method and system, storage medium and terminal
交通数据填充方法、系统、存储介质及终端
08.09.2020
Patent
Elektronische Ressource
Chinesisch
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