During the time of crisis of the society, an explosive amount of information is produced from many sources, but proper treatment of information is hard in those cases because the pattern of information is different from normal situations. We remember chaotic situations just after 2011 Great East Japan Earthquake. The first problem is to develop information technology to support this situation when the urgency of information is high during the crisis. On the other hand, the amount of information gets smaller some time after the crisis, but we need to have a persepective viewpoint from the accumulated information to take the next step. This informtion is also worth archiving to prepare for the next crisis. The second problem is to support the cycle of information for the long term.
Public Lecture "Crisis Information" introduced some of the ideas. A research project is also introduced in Big Data and Disaster.
2. Related Projects