20 freeman l c . a set of measures of centrality based upon betweenness . sociometry , 1977 , 40 : 35 - 41 该算法能够基于先前计算出的共体结构快速对增量后的网络重新聚类。
2.
22 freeman l c . a set of measures of centrality based upon betweenness . sociometry , 1977 , 40 : 35 - 41 Mcs算法的基本原理是基于聚类测度clustering centrality概念的矩阵变换。
3.
Thirdly , the author puts emphasis on the analysis of interpersonal communication system for agricultural science and technology , and makes a brief analysis in the organization communication system of agricultural science , and technology initially classifying the structure of interpersonal communication in rural areas using " sociometry " , coupled with individual interview , she finds that agricultural science and technology information spreads by way of " opinion leader " , supposing the fundamental social communities as environment , interpersonal communication as means 再次，着重分析了农业科技的人际传播机制，并对农业科技的组织传播机制进行了简要分析。首先运用“社会测量法”对农村社区的人际传播结构进行了划分，结合个案访谈发现农业科技信息是沿着“意见领袖?助手?一般成员”这一路线，以初级社会群体为环境、以人际交往为手段进行传播的。
4.
The thesis touches upon the communication system of agricultural science and technology in two rural communities of yichang , hubei province . based on the statistic analysis of the investigation , combined with " sociometry " and specific interview , employing the relevant theories of sociology , mass communication science and behavior science , it conducts the initial research about hubei province ' s communication system of agricultural science 本研究以湖北省宜昌市两个农村社区的农业科技传播体系为研究对象，在对问卷调查结果进行统计分析的基础上，结合“社会测量法”和个案访谈法，运用社会学、传播学以及行为科学等学科的有关理论，对我省农业科技传播体系进行了初步研究。
