Public security systems interacting analysis based on spatial data mining

Public security systems are very important to the whole social system. And it also contains many subsystems, such as inspecting system, disaster prevention system, life lines, emergency system, and so on. These subsystems work together by some definite mechanism to fulfill public security responsibility as one integrated system. While these subsystems interact and influence each other during disaster happening. Sometimes such influence baffle rescue process, and even cause secondary disaster. This paper declares relationship among components of public security system through systemically analyzing. By utilizing data mining method interacting and influence during disaster happening can be discovery form GIS database. The influence includes structure influence, functional interruption, recovery obstacle, and secondary disaster cause. Well understanding of these relationships can help a lot in disaster prevention and emergency control.