Portrait analysis of gravity sphere of influence and spatial interaction intensity of urban logistics center—A case study of Zhengzhou City

By using space syntax and word vector theory respectively, this paper optimizes the measurement method of comprehensive strength parameter and distance parameter in the gravity model, combines the subjective feeling and preference law of logistics elements on spatial structure when they travel with the spatial distribution form of material supply and demand, and realizes the identification of urban logistics center and the division of gravitational sphere of influence. Then, a complex network is constructed on this basis, and the spatial interaction strength between logistics centers is presented by using edge weights. Finally, the dynamic and static form portrait analysis of urban logistics center is completed.