抄録
It is necessary to illustrate the relationship among the events related to sustainability beforehand in order to investigate sustainability of global environment. In this research, we propose a method to quantify relational strength between the two of the events related to sustainability by using the frequency of the conjunction of them in an article of newspapers. According to this result, an overview of the current status regarding sustainability is presented on the use of multidimensional scaling (MDS) as a method of data visualization. We also developed tools which analyze the relation between each event in detail.
