Abstract
Some social problems consist of sub-problems in various fields. Disaster prevention is one of the typical problems because so many issues such as social support for elder person, regional restoration planning and cost-effective analysis from economical point of view are included. To solve such problems, the researchers in various fields must collaborate to seek for comprehensive solution. However it is hard to build the team for interdisciplinary collaboration with suitable researchers because the interest of each researcher cannot be known exactly. Also it is difficult to know who can bridge the researchers with different field. In this study, we develop several decision support methods for interdisciplinary collaboration in disaster prevention. There methods are based on text analysis which is applied to examine the interest of researchers.