TEMPORAL—SPATIAL DIFFUSION OF TECHNOLOGY: AN EXAMPLE OF GIS DIFFUSION IN SECTOR OF COLLEGES AND INSTITUTIONS IN CHINA
研究了GIS技术在中国高校部门中随时间与空间扩散的S曲线特征，分析了区域文化、经济、信息等因素的影响，并用基于主体的模型进行了模拟验证。
The diffusion of a new technology usually involves two dimensions: time and space.Much of the studies in this field focus on temporal diffusion.Compared with temporal diffusion,study on the process and mechanism of spatial diffusion seems rather difficult.The reasons are unavailability of data and complexity of influential factors in terms of spatial diffusion.This paper provides data on GIS diffusion in sector of colleges and institutions in China by means of bibiliometrics.The characteristic of this data is that it has both temporal and spatial dimensions.The data shows that,both temporally and spatially,the diffusion of technology turns take on the typical S curve.On base of data analysis, this paper study on the main factors that affect GIS diffusion in China,including regional culture,education and scientific research;regional economic growth as well as regional information and internet status.Then,the authors simulate the diffusion using agent-based model.The outcomes of the simulation are rather satisfactory,indicating the analysis on factors that affect GIS diffusion in China is reasonable.