近年国内网络信息流距离衰减研究综述

Overview of Research on Network Information Flow Distance Decay in Recent Years

基于信息化的时代背景,延承经典地理学的距离衰减问题,通过相关词语检索,获得近年国内学者相关研究成果的样本文献,针对网络信息流距离衰减问题,应用量化和实证研究相结合的方法,初步形成了一套相对完整的研究体系,进而根据文献的关键词汇总出4个领域,并对其进行综述,以呈现信息时代距离衰减的研究进展.国内学术进展的主要体现:概括出网络信息流距离衰减的3类形态特征,即矢量扩散、模糊距离衰减、指数衰减和高斯衰减;指出网络信息流距离衰减对现实人流的导引机理在于不同空间信息流距离衰减的耦合,导引过程集中于登陆网站—获取信息—做出决策—形成人流4步,并揭示了导引人流的3种方式,即主动式、被动式和互动式;结合网络信息流距离衰减从不同角度尝试给出电子商务区位取向的中心—外围规律;网络信息流距离衰减研究的深度发展拓展出了2个新的研究领域,即SNS中人际交流的群组结构、危机信息网络传播的空间特点.

Under the background of information technology, this paper inherits the classic geography and focuses on the distance decay effect. The sample literatures are got by filtering the related research results in China via multilevel and multi-angle. A relatively complete set of system is established by combining quantitative and empirical research in recent years. The sample literatures are put into 4 main fields based on the summary results of contents and keywords, some focused contents are summarized in each field to present its development and achievement. Through the comprehensive analysis, it is found that there are three different network information flow decay patterns, respectively are vector diffusion, fuzzy distance attenuation and index and gaussian model; the guidance of network information flow on human flow reveals three different ways,i, e. positive guiding, passive guiding and interactive guiding;the law of center-peripheral about ecommerce spatial distribution is given by domestic scholars from different aspects.There are two new trends（SNS and the unexpected public crisis） in the network information flow decay.