The instructions for numerical analysis of human relationships utilizing Web site data – The centralities and cliques of politicians from the viewpoint of Japanese Diet members' Web sites

Recently, the network analysis is generally used to recognize complex interpersonal relations. The hyperlinks in WWW became one of the prominent data sources to construct the network. In order to examine validity of using the hyperlink relation for the network construction, this paper takes an example of the Web page of Diet member in Japan. We have constructed two kinds of networks for comparison. One is usual hyperlink network, and the other is reference relationship in the Web text. The network centrality analyses and faction analysis were applied to the obtained networks. As a result, the hyperlink based networks are suitable for faction analysis, and the reference based networks are suitable for analyses of various centralities. The utilization of WWW will become general in political field, while it is not progressed in large political party at present. Various types of relationship analyses based on WWW data will become available in the future.