Research On Modeling And Visualization Methods Of Social Cyberspace Spatio-temporal Entities

Anything or phenomenon exists in a certain time and space,and the emergence of social networks has produced a new spatial form-social cyberspace,whose entity can be called social cyberspace spatio-temporal entity.With the development and generalization of Internet technology,the communication and exchange methods represented by social networks have more and more profoundly influenced the way of life,communication,consumption and entertainment of human beings,and thus shaped the new social structure and social relations,which have a great impact on the development of human society.However,as social cyberspace breaks through the spatiotemporal limitations of traditional physical space,it makes it difficult for traditional modeling methods such as GIS to meet the needs of describing and expressing abstract and complex,associated dynamic social cyberspace spatio-temporal entities,especially digital spatio-temporal entities under complex network spatio-temporal benchmarks,such as social accounts,software platforms,IP addresses,etc.Therefore,it is of scientific value and practical significance to explore new description methods to further enrich and expand their entity modeling theories and methods.Based on the modeling theory of the Pan-Spatial Information System,this paper takes the modeling and visualization of social cyberspace spatio-temporal entities as the research theme,focusing on the modeling theory,modeling method and visualization expression,etc.The main research work includes the following aspects.(1)The research background and research significance of social cyberspace spatio-temporal entity modeling are explained.The concepts related to social cyberspace spatio-temporal entity are proposed,and on this basis,the current situation and shortcomings of the research on spatiotemporal entity modeling and visualization in social cyberspace are analyzed.Finally,the research purpose,research framework and research content of this paper are proposed.(2)The basic theory of social cyberspace spatio-temporal entity modeling is studied.The spatial cognitive basis of social cyberspace spatio-temporal entities is elaborated,the connotation,status quo,characteristics and models of social cyberspace cognition are analyzed,the threedivision structure hierarchy model and entity space mapping model for social cyberspace are designed,and the classification and grading of social cyberspace spatio-temporal entities and the coding system design scheme are proposed.The basic principles of social cyberspace spatiotemporal entity modeling are systematically elaborated,and the spatio-temporal object data model for social cyberspace spatio-temporal entities is designed on this basis,which provides theoretical support for its objectification description.(3)The object-oriented modeling method of social cyberspace spatio-temporal entities based on class templates are studied.The process of objectification modeling of social cyberspace spatiotemporal entities based on class templates and the general structure of spatio-temporal object class templates in the social network are designed,and a method of organizing and managing social cyberspace spatio-temporal objects based on spatio-temporal domain and a method of storing spatio-temporal object files in the social network taking into account the life cycle characteristics of entities are proposed to realize the construction,organization,storage and management of social cyberspace spatio-temporal objects.(4)A set of spatio-temporal reference systems for social cyberspace spatio-temporal entities is constructed.According to the spatio-temporal characteristics of social cyberspace spatiotemporal entities,a unified description method of temporal reference and a multidimensional description method of spatial reference are proposed,and the construction methods of AS coordinates,IP coordinate system,social universe coordinate system,small world network coordinate system and node center coordinates and their transformation rules are designed,which lay a theoretical foundation for the spatial location description and spatial mapping expression of social cyberspace spatio-temporal entities.(5)A prediction model of association strength of social cyberspace spatio-temporal entities based on interaction behavior is designed.The basic concept of association strength of social cyberspace spatio-temporal entities and the related process and method of association relationship modeling are introduced.To address the problem of difficulty in quantifying the strength of relationships,a prediction model of spatio-temporal entity association strength in social cyberspace based on interaction behaviors is designed,and the scientificity and usability of the model are verified through the We Chat questionnaire data,which provides model support for the scientific description and quantitative expression of spatio-temporal entitiy association relationships.(6)The visual representation method of social cyberspace spatio-temporal objects is studied.The application of map ground theory to the visual representation of social cyberspace spatiotemporal objects is explained,and a visual representation model for social cyberspace spatiotemporal objects is designed.Based on the basic theory of visual representation,a method of visual representation of social cyberspace spatio-temporal objects based on granularity features and a method of multi-level visual representation of social cyberspace spatio-temporal objects taking into account geospatial features are proposed,and the usability of the visual representation model and visual representation method is verified through experiments and analysis,realizing the associated dynamic representation of social cyberspace spatio-temporal objects from micro to macro and from physical to digital,which has the advantages of association,dynamic and combination of real and virtual compared with traditional methods.(7)Based on the above research results,an experimental system for social cyberspace spatiotemporal entity modeling and visualization is developed.With the support of the experimental system,the actual data of social cyberspace spatio-temporal entities is used for object modeling and visual representation application analysis,which verifies the scientificity and usability of the relevant theories and methods in this paper.In the background of Pan-Spatial Information System,this paper,as an exploratory experiment of social cyberspace spatio-temporal entities modeling research in social cyberspace,has achieved certain theoretical and methodological innovations,but there are still many theoretical and technical problems that need to be broken through and need further research and consideration.In the future,we will consider continuing to improve the existing related modeling and visualization methods,explore the spatio-temporal analysis method of social networks based on spatio-temporal objects,and further study the objectified organization,storage,management and visualization expression of massive social cyberspace spatial-temporal entity information,to contribute to the building of a community of human destiny in cyberspace.