而农村弱势群体信息服务状态会直接影响整个农村信息服务水平，从而一定程度上影响农村
信息化建设的进程。豫皖苏滇四省是我国各具代表性的农业大省，本文以他们作为研究对象，
从社会网络视角切入，运用社会网络分析软件 UCINET 研究其农村弱势群体信息服务现状、信
息服务网络特征；并基于无标度网络的模型并利用 NetLogo 仿真软件来对影响农村弱势群体
网络信息传播网络结构和传播影响范围的主导因素进行定量的仿真研究，所建模型是在
NetLogo 中的 Preferential Attachment 模型基础上，根据农村地区信息传播的特点，增加了传
播主体以类似于“意见领袖”的方式形成的信息传播影响扩散区域模型；最后通过问卷调查，
深入农村进行实地调研，通过实证分析等方法全面掌握农村弱势群体的获取信息的行为方式
与当前农村弱势群体信息服务建设的优势与不足，以数据为基础为政府提出一定的政策性建
议

根据研究显示，豫皖苏滇四省现有的农村弱势群体信息服务网络中，政府作为农村信息
提供者一直处于现有社会网络的核心位置，其覆盖范围最为广泛；同时，一些农业院校与科
研机构、涉农龙头企业也逐渐出现在农村弱势群体信息服务社会网络中，这个结果与模型仿
真结果类似。最后，本文综合社会网络分析结果、模型仿真结果，基于大量研究文献的基础
上，构建了农村弱势群体社会网络对农村信息服务效果的作用模型，运用因子分析、相关分
析、多元线性回归分析等方法来研究豫皖苏滇四省农村弱势群体的调查研究数据。根据数据
分析结果，提出了优化农村弱势群体信息服务的几种政策建议，即需要充分发挥政府的公信
力，加快各信息服务网络主体之间的融合；并根据各区域现状，差异化开展农村弱势群体信
息服务；同时，政府通过宣传教育，尽量减少农村弱势群体盲目性行为

关键词：农村弱势群体；信息服务；社会网络；信息需求II
Abstract
The construction of rural informatization has always been a continuing concern of our government,
which is of strategic significance to solve the three rural issues. And the information service status
of rural vulnerable groups will directly affect the level of rural information service, thus affecting
the process of rural information construction to a certain extent. Henan, Anhui, Jiangsu and Yunnan
provinces are representative of China&39;s agricultural province. This paper takes them as the research
object, and uses the social network analysis software UCINET to study the status of information
service of rural vulnerable groups and the characteristics of information service network. Based on
the model of scale-free network and using NetLogo simulation software to quantitatively simulate
the dominant factors influencing the structure and propagation of rural network information
dissemination network. The model is based on the Preferential Attachment model in NetLogo. The
characteristics of information dissemination in rural areas have increased the influence of the
dissemination of information on the spread of regional models in the form of similarity to the
opinion leaders. Finally, through the questionnaire survey, in-depth rural research, through
empirical analysis and other methods to fully grasp the way of the rural vulnerable groups obtaining
information and the advantages and disadvantages of the information service construction of the
current rural vulnerable groups, and put forward some policy suggestions for the government based
on the data.
According to the research, the government, as the rural information provider in the existing
rural disadvantaged group information service network in Henan、Jiangsu、Yunnan and Anhui
Provinces, has been at the core of the existing social network, and its coverage is the most extensive.
At the same time, some agricultural colleges and research institutions, leading agricultural
enterprises have gradually appeared in the rural disadvantaged groups information service social
network, the results are similar to the model simulation results. Finally, based on the results of
social network analysis and model simulation, this paper constructs the model of the effect of rural
social network on rural information service based on a large number of research literatures. Using
factor analysis, correlation analysis, multiple linear regression analysis to study the Jiangsu、III
Yunnan 、Henan and Anhui provinces rural vulnerable groups survey data. Based on the results of
data analysis, several policy suggestions are put forward to optimize the information service of the
rural vulnerable groups. It is necessary to give full play to the credibility of the government and
speed up the integration of the main body of the information service network. According to the
regional status, the government needs carry out the different information services. At the same time,
the government through publicity and education, to minimize the rural vulnerable groups blind
behavior.
Key words: Rural vulnerable groups; Information service; Social network; Information
demandsIV
目 录
第一章 绪论. 1
1.1 研究背景 ....... 1
1.2 研究意义、目的 . 1
1.3 研究内容和框架 . 2
1.4 论文可能的创新之处 ......... 3
第二章 文献综述 ........ 5
2.1 社会网络分析理论 ........... 5
2.1.1 社会网络的定义 ...... 5
2.1.2 社会网络分析的定义及特点 ........ 5
2.1.3 社会网络分析的研究方法 .......... 6
2.1.4 社会网络发展的研究现状 .......... 6
2.1.5 基于社会网络分析的农村信息服务研究 .......... 7
2.2 农村弱势群体的概念界定 ..... 8
2.2.1 弱势群体的概念界定 .. 8
2.2.2 农村弱势群体的概念界定 .......... 9
2.3 信息服务理论 .. 10
2.3.1 信息服务内涵 ....... 10
2.3.2 国内外农村信息服务体系发展现状 . 11
第三章 豫皖苏滇四省农村弱势群体信息服务的社会网络分析..... 16
3.1 豫皖苏滇四省农村弱势群体信息服务发展现状 .......... 16
3.2 农村弱势群体信息服务的构成要素 ........ 16
3.3 农村弱势群体信息服务的社会网络分析 .... 17
3.3.1 样本选取 ........... 17
3.3.2 基于 UCINET 的社会网络分析 ...... 17
第四章 农村弱势群体信息服务网络演化仿真分析 ... 23
4.1 仿真模型选取 .. 23
4.2 仿真模型分析 .. 23
第五章 实证研究--以豫皖苏滇四省农村弱势群体信息服务为例.... 27V
5.1 模型的构建与研究假设 ...... 27
5.1.1 社会网络关系特征对信息服务效果的作用分析 ... 27
5.1.2 社会网络主体特征对信息服务效果的作用分析 ... 30
5.1.3 社会网络结构特征对信息服务效果的作用分析 ... 31
5.1.4 农村弱势群体信息服务效果的影响因素模型构建 . 32
5.2 研究设计与数据收集 ........ 33
5.2.1 问卷调研设计 ....... 33
5.2.2 变量与测量 ......... 33
5.3 实证分析与统计检验 ........ 36
5.3.1 描述性统计分析 ..... 36
5.3.2 信度检验 ........... 37
5.3.3 效度检验 ......
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