The Evolution Analysis Of Academic Community In GIS With Spatial Dispersion-based Methods

Geographic Information Science(GIScience)was formally proposed by Goodchild in 1992.With the rapid development of computer technology and sensor technology,new data acquisition methods,such as remote sensing technology and photogrammetry technology,have gradually become familiar.After more than 20 years of development,today's geographic information science has gradually developed into a comprehensive discipline in fields such as computer science,geographic science and information management,and has been widely used in disaster emergency response,regional planning and design,economic and social development and resource environment.As a new interdisciplinary subject,geographic information science has a variety of research methods and complex research systems,leading researchers to carry out research on geographic information,and cannot grasp the development trend of subjects from a macroscopic perspective.Based on geographic information science 20 this authoritative journal of academic papers in the field of construction of academic cooperation network divides the community from the Angle of the academic community development to analyze the evolution of geographic information,which will help scholars understanding of the historical development of geographic information science and the development trend of the future.The specific research contents of this paper are as follows:(1)This paper proposes a comprehensive evaluation index of scholars' influence.Build an academic cooperative network in GIS based on the coauthor information in the literature data and divide the academic community;According to the position of scholars in the academic cooperative network and the relationship among scholars,Page Rank is used to measure the influence of scholars? cooperation.According to the author's attribution order and the citation influence of the cited number of scholars;Using TOPSIS method to comprehensive influence and reference index of cooperation,to get the comprehensive influence of scholars'evaluation index;The evaluation index of comprehensive influence of scholars in academic community in the past years is analyzed to analyze the development and evolution of the influential academic community,thus discovering the development law of geography.(2)This paper suggests an influential assessment of the impact of the study of spatial dispersion.Based on the idea of Shannon entropy,this paper puts forward the spatial dispersion index,and combines scholars to publish articles and the cooperation between scholars and others,respectively,to calculate the influence of scholars' spatial reference and spatial cooperation.The TOPSIS method is used to synthesize the above indicators and obtain the spatial influence of scholars.Based on the author?s comprehensive influence index,this paper analyzes the evolution law of scholars and academic communities with spatial influence in the field of geographic information.(3)This paper builds a visual analysis system based on GIS literature data,to realize the interactive visualization of bibliometric statistical analysis,academic community evolution analysis and outstanding scholar distribution in GIS domain,and to provide effective tools for researchers to comb the development context of GIS and to understand the hot spots in the field.