本文選題：城市節(jié)點結(jié)構(gòu) + 信息傳輸速度��； 參考：《河北師范大學(xué)》2012年碩士論文

【摘要】：信息網(wǎng)絡(luò)中城市節(jié)點的空間結(jié)構(gòu)與傳統(tǒng)意義上的城市體系有著諸多區(qū)別，呈現(xiàn)出一系列新的特征和規(guī)律。盡管理論上通信光纜中信息傳輸速度接近于光速，但網(wǎng)絡(luò)信息空間中城市節(jié)點之間的交流離“無摩擦”階段還有較大差距，我們依然不能忽略城市節(jié)點間信息傳輸速度的差異性。研究中我們發(fā)現(xiàn)城市節(jié)點之間的信息傳輸速度決定其信息交流的通達(dá)度進(jìn)而決定城市節(jié)點的空間結(jié)構(gòu)體系，它已成為信息時代城市節(jié)點最重要的競爭性區(qū)位要素之一。 本文基于互聯(lián)網(wǎng)信息傳輸速度這一動態(tài)研究新視角，基于集散場理論，從點、線、面三個層次，通過因子分析和空間分析，嘗試構(gòu)筑起互聯(lián)網(wǎng)信息傳輸速度作用下的我國城市節(jié)點間相互聯(lián)系的空間結(jié)構(gòu)體系。 首先，使用EXECL軟件，對測速網(wǎng)站上信息傳輸速度原始數(shù)據(jù)進(jìn)行匯總，編制出我國31個省會城市節(jié)點間信息傳輸速度的31×31數(shù)據(jù)矩陣。 其次，基于集散場理論，運(yùn)用SPSS軟件進(jìn)行因子分析，計算出R型和Q型因子分析中變量的特征值和累計貢獻(xiàn)率、因子得分以及各省會城市節(jié)點的綜合得分，揭示信息網(wǎng)絡(luò)中城市節(jié)點集散場的優(yōu)勢區(qū)位節(jié)點和弱勢區(qū)位節(jié)點總體分布特征。 再次，使用地理信息系統(tǒng)軟件ARCGIS和矩陣分析軟件MATLAB進(jìn)行信息網(wǎng)絡(luò)中城市節(jié)點結(jié)構(gòu)的空間分析，從實證層面對城市節(jié)點間信息傳輸?shù)臄?shù)據(jù)資料進(jìn)行定量分析，最終總結(jié)出互聯(lián)網(wǎng)信息傳輸速度作用下的城市節(jié)點的空間結(jié)構(gòu)類型及其總體特征。 研究發(fā)現(xiàn)： （1）信息網(wǎng)絡(luò)中城市節(jié)點間空間聯(lián)系以大尺度為主，外向擴(kuò)散性特征明顯，，影響范圍進(jìn)一步擴(kuò)大，整體發(fā)展不均衡。根據(jù)在集散場中的作用大小，可將城市節(jié)點分為集散雙優(yōu)型、集聚偏向型和擴(kuò)散偏向型和集散雙劣型四大類。 （2）互聯(lián)網(wǎng)信息傳輸速度與傳統(tǒng)城市等級之間擺脫了正比例關(guān)系。傳統(tǒng)城市等級靠前的東部城市信息傳輸速度較低，而中西部城市節(jié)點信息傳輸速度較快，并與其他節(jié)點之間能夠?qū)崿F(xiàn)快速相互訪問。 （3）集散場中各等級城市節(jié)點間空間聯(lián)系的結(jié)構(gòu)特征顯著。一級城市節(jié)點多表現(xiàn)為單核和雙核的空間分布集散模式，同時存在兩個節(jié)點之間單向吸引（或擴(kuò)散）構(gòu)成的“單向空間吸引力（或擴(kuò)散力）對”；二級城市節(jié)點整體上表現(xiàn)為多核心東部指向性或者雙向空間集中性的空間分布結(jié)構(gòu)模式；三級城市節(jié)點之間相互吸引（或擴(kuò)散）通常會形成雙向吸引（或擴(kuò)散）的空間分布結(jié)構(gòu)模式；四級城市節(jié)點大都作為集散中心而存在，表現(xiàn)為雙向吸引（或擴(kuò)散）的網(wǎng)絡(luò)化空間分布結(jié)構(gòu)特征。 （4）信息網(wǎng)絡(luò)體系中東部城市節(jié)點之間多形成密集的信息雙向?qū)α鲄^(qū)，而西部城市節(jié)點之間則多單向信息流動區(qū)，城市節(jié)點空間分布不均衡、網(wǎng)絡(luò)關(guān)聯(lián)度不高，網(wǎng)絡(luò)結(jié)構(gòu)發(fā)育有待進(jìn)一步完善。 （5）西部城市信息傳輸速度“收入”大大超過“支出”，三維空間中表現(xiàn)為由峰值連成的山嶺狀隆起帶，東部城市總體表現(xiàn)平緩，從側(cè)面反映出中東部城市節(jié)點信息化水平相對穩(wěn)定，而西部城市節(jié)點則波動明顯。
[Abstract]:The information network of spatial structure of city nodes and the traditional sense of the city there are many differences, showing a series of new characteristics and laws. Although the theory on information transmission speed of the communication cable close to the speed of light, but the city network information space node communication from "there is a large gap between the friction stage, we still can not ignore the differences in speed of information transmission between nodes of the city. In the study we found that the speed of information transmission between nodes of the city determines the exchange of information accessibility and decision space structure of city node, it has become one of the most important node of the information age city competitive location factors.
In this paper, a new perspective of research on dynamic Internet information transmission speed based on set theory based on the field, from the point, line, surface three levels, through factors analysis and spatial analysis, try to build our city node Internet information transmission speed under the action of the relationship between the spatial structure of the system.
First, we use EXECL software to summarize the information transmission speed and original data on speed measuring website, and compile 31 x 31 data matrix of information transmission speed between nodes in 31 provincial capital cities.
Secondly, in field based on the theory of factor analysis using SPSS software, calculate the analysis of R type and Q type factor characteristic values of variables and the cumulative contribution rate, factor score and comprehensive score of each node of the capital city, revealing the city information in the network node set over the advantages of regional nodes and weak node location distribution.
Again, the use of MATLAB geographic information system software ARCGIS and matrix analysis software was used to analyze the information of nodes in the network structure of city space, quantitative analysis of information transmission between nodes in city from the empirical data layer, finally summed up the Internet information transmission speed for spatial structure of city node and the overall features of use.
The study found that:
(1) the information network in city space between nodes to large scale, outward diffusion characteristics significantly influence, further expand the scope of the overall development is not balanced. In the field of the role set according to the size of the city nodes are divided into distributed Shuangyou type, agglomeration and diffusion of biased biased and distributed double inferior type four categories.
(2) the relationship between the Internet information transmission speed and get rid of the traditional city level. The traditional city level on the eastern city of the information transmission speed is low, while the Midwest city node information transmission speed, and other nodes can achieve mutual access.
(3) in each grade city spatial structure relationship between nodes in the field significantly. A multi node distribution city distribution model for mononuclear and dinuclear space, at the same time between the two nodes (or diffusion) attract one-way one-way space attractive composition "(or diffusion) of two city"; the overall performance of the multi core nodes in Eastern directional or two-way spatial concentration spatial distribution pattern; attraction between three city nodes (or diffusion) usually form bidirectional suction (or diffusion) distribution pattern of space; and there is four city node as the center, to attract (or two-way the diffusion distribution network structure) feature space.
(4) the information network system often forms dense information bidirectional convection area between the nodes in the Middle East cities. There are many one-way information flows among the nodes in western cities. The spatial distribution of urban nodes is not balanced, and the network correlation degree is not high. The development of network structure needs further improvement.
(5) in the western city of information transmission speed greatly exceeds the "income", "expenditure" in the three-dimensional space from the mountains into the peak shaped uplift belt, the eastern city of the overall performance of flat, reflected from the side of the Middle East Department of city node information level is relatively stable, while the western city nodes fluctuate significantly.

【學(xué)位授予單位】：河北師范大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：F49;TP393.09

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