摘要
在对传统的地理空间和新的计算机网络空间进行比较的基础上,解析了中国省域为单元的联系频率、基于主干网的联系形式和城市节点间的联系速度三个方面:分别应用主成分分析方法得到两个空间对应的若干基本类型以及特征;应用网络分析方法对两个空间各自的联系形式进行了归纳;应用网络服务器距离衰减方法整理了从全国5个网络测试站返回的程序测算数据,对中国两个空间的联系速度进行了规律性认知。
The aim of this study is to compare and analyze Chinese traditional geo-space and cyberspace. Some characteristics of the two spaces are compared taking China as an example, including connection frequency in provinces, connection types basing on the main network and connection speed between nodes of cities. Some basic types and characteristics of the two spaces are obtained using the method of principle component, the characteristics of connection types are concluded using the method of network analysis, and by analyzing the program exam data from five exam spots in China using the method of distance attenuation of servers the comparison analysis and rule cognition of connection speed are made. The results show： 1 ） In connection consequence, strong connection area and weak one are corresponding in the rough and the weak connection area surrounds the strong one. Connection consequence of cyberspace is not degression because of far away from the center, which is dif- ferent from geo-space. 2） In connection type, city centripetalism is obvious but center spots are different. The hierarchy of node is relatively accord but the barycenter of main network is not accord. The distribution types of network line include easy and complex ones. The distribution type of flow include one-direction and multi-direction, stability and instability, and continuity and discontinuity. And 3） In connection speed, relation spots of the two spaces appear scatter distributing, but aggregation is still exist in scatter distributing while out the aggregation area, geo-space distance and cyberspace distance is isochronous. Cyberspace distance has the rule of instantaneous and geo-space has the rule of distance-depending.
出处
《地理科学》
CSCD
北大核心
2008年第5期601-606,共6页
Scientia Geographica Sinica
基金
国家自然科学基金(40571042)资助
