Research On Object-Oriented Spatio-Temporal Modeling And Visualization Of Interpersonal Relationship Network

With the development of big data,cloud computing,artificial intelligence,virtual reality and other information technologies,as well as the integrated application of satellite navigation and positioning(GNSS),satellite remote sensing(RS)and geographic information system technology(GIS),traditional Geomatics are gradually developing become Geospatial Intelligent Service Science.In recent years,the content of geospatial data has expanded from traditional geographical basic data to spatio-temporal big data.The interpersonal relationship network data with rich spatio-temporal characteristics obtained from non-dedicated surveying sensors such as location-based services,mobile social networks and Internet platforms have become research hotspots in many fields.Under the background the new generation of GIS: Pan-spatial Information System,based on the multi-granularity spatio-temporal object data model,the object-oriented spatiotemporal modeling and visualization of human relationship network are studied.The main contents of the paper are as follows:(1)Through the analysis of the research status of the multi-granularity spatio-temporal object data model,interpersonal relationship network construction and visualization methods,the paper summarizes the shortcomings in the current research of interpersonal relationship network modeling and visualization,and then puts forward the main research objectives and contents of the paper.(2)The paper expounds the concepts and theories of object-oriented spatio-temporal modeling of interpersonal relationship network.The essence of object-oriented spatio-temporal modeling of interpersonal relationship network is to abstract individual and interpersonal relationship in the objective world into multi-granularity spatiotemporal objects and the relationship between objects.Through the analysis of the theory,the overall technical framework of the paper is proposed.(3)This paper analyzes the requirements and data description contents of the object-oriented spatio-temporal modeling of interpersonal relationship network,and designs a multi-granularity spatio-temporal object data conceptual model for interpersonal relationship network.The paper designed an interactive interpersonal network construction method based on graphical interface and a method of batch construction based on database engine for modeling interpersonal relationship network.Detailed design of the modeling process steps and each step of the data conversion method are explained.(4)By analyzing the needs of visualization of interpersonal relationship network,the paper formed visualization expression system designed visualization process.An improved FR algorithm is designed to enhance the visibility of the community structure of the network to meet the needs of the visualization of the network topology;A hierarchical 3D visualization method based on sight distance is designed in order to meet the needs of visualization of spatial and temporal characteristics of interpersonal relationship networks(5)The paper introduced the prototype system of the object-oriented spatio-temporal modeling and visualization of interpersonal relationship network,and tested the functions of the object-oriented spatiotemporal modeling and visualization of human relationship network in the prototype system,which verifies the effectiveness and practicability of the modeling method and visualization algorithm proposed in the paper.