The invention discloses a road network state determination method and device, equipment and a storage medium. The method comprises the steps of determining an association relationship between an intersection and a road section in a road network; constructing a graph neural network model of the road network based on the incidence relation; training the vertexes representing the road sections in the graph neural network model, and obtaining feature vectors of the vertexes; under the constraint of the attribute information of the road section, calculating the similarity between the vertexes based on the feature vectors; and determining intersections and road sections with correlated traffic modes and traffic states in the road network according to the similarity. According to the method, the feature vectors of the road sections are extracted from the graph neural network model, the attribute information of the road sections is combined with the feature vectors, the similarity between the road sections in the road network is calculated, and the state of the road network is evaluated according to the similarity, so that the state of the road network is evaluated from two dimensions of space and time; and the attribute information of the road section is integrated into the feature evaluation of the whole road network, so that the road network state can be analyzed more comprehensively.

    本发明公开了一种路网状态的确定方法、装置、设备及存储介质,该方法包括:确定路网中路口与路段之间的关联关系;基于关联关系构建路网的图神经网络模型;在图神经网络模型中对表示路段的顶点进行训练,得到顶点的特征向量;在路段的属性信息的约束下,基于特征向量计算各顶点之间的相似性;根据相似性确定路网中交通模式、交通状态相互关联的路口和路段。上述方法在图神经网络模型中提取路段的特征向量,将路段的属性信息与特征向量结合、计算路网中路段之间的相似性,根据相似性评估路网的状态,不仅从空间和时间两个维度上对路网状态进行了评估,更将路段所具备的属性信息融入对整体路网的特征评估中,能够更为全面的对路网状态进行分析。


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    Titel :

    Road network state determination method and device, equipment and storage medium


    Weitere Titelangaben:

    一种路网状态的确定方法、装置、设备及存储介质


    Beteiligte:
    JIN JUNCHEN (Autor:in) / HUA WEN (Autor:in) / WANG ZUOWEI (Autor:in)

    Erscheinungsdatum :

    2021-08-13


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G06K Erkennen von Daten , RECOGNITION OF DATA / G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen



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