Extracting a Keyword Network of Flood Disaster Measures

For rapid and effective recovery from a flood disaster, an anti-disaster headquarters must not only assess the extent of damage, but also possess overall knowledge of the possible anti-disaster measures. However, in an anti-disaster headquarters, the personnel possess specialized knowledge, and the prospective measures and services helpful to people affected by disasters tend to go unnoticed. In order to provide overall knowledge of the possible anti-disaster measures, we analyzed the measures undertaken in previous flood disasters and visualized the structure of these measures using networked graphs. In this paper, we describe our analysis method and our implementation of a visualizing system. Our analysis helps the personnel to grasp the underlying knowledge of flood disasters by clarifying a few categories of the undertaken measures and the links between them.