# Multiple Correspondence Analysis of Emergencies Attended by Integrated Security Services
## 2 Motivation  
In order to explain the emergency response cycle, let us start defining an emergency as a high-stress situation that requires organizations to respond in a different way from their usual operational procedures [4; 13]. Figure 1 shows a diagram of the FRI activity level along time. We can clearly identify four phases and five decision points that characterize an emergency [4]. During the Situational Analysis (SA) phase, the alert mechanisms of a PSAP are prepared to receive alerts. Once an alert becomes into an emergency, an initiating Event (IE) point occurs in \(t1\), the emergency information is transferred to the FRI dispatcher, and the Initiation Response (IR) phase begins. In \(t2\) or Control Event (CE) point, the Emergency Response (ER) phase starts, and the FRI activity increases due to the resources moved and deployed to the affected area. In \(t3\) or Restoration Event (RE) point, the emergency is under control and part of the displaced units return to their operational bases. Only the strictly required FRIs remain operative and supporting the affected area during this Restoration Response (RR) phase. Finally, in \(t4\) or Normalizing Event (NE) point, all units return to its normal activities, and the emergency response cycle automatically restarts with a new SA phase. At any time of the emergency, and according to the circumstances, it is possible to finish it by jumping directly to the Termination Event (TE) point, and for that reason, this point is not vertically located in the plot timeline. All the analyzed emergencies occur during ER and RR phases of the represented figure, and they are subsequently assigned to a set of possible categories taking place in the mentioned phases.  
The PSAP-attended emergencies are daily saved in a local DB from which a centralized Data Warehouse consolidates the information countrywide [2]. By using suitable statistical techniques, this information could be analyzed in order to obtain relevant feedback for all the service and articulated institutions, and this information will undoubtedly be of capital importance to feedback the institutions involved in the emergency response process. This analysis will permit us to understand how emergency processes work and to visualize how the FRIs operate for each type of emergencies that they attend. In this direction, we propose the use of MCA applied to FRIs, emergencies, and categories that are  
Figure 1: Representation of the First Response Institution (FRI) activity level along time when an emergency is detected. Activity level has four phases (Situational Analysis (SA), Initiation Response (IR), Emergency Response (ER), Restoration Response (RR)) and five decision points (Initiating Event (IE), Control Event (CE), Restoration Event (RE), Normalizing Event (NE), Termination Event (TE)) [4].  
recorded in the emergency forms, in order to find out the possible relations among them with an easy-to-handle, yet statistically rigorous system. MCA is often used with other well-defined and well-known analysis purposes in marketing sciences, notwithstanding that with this unusual and novel application of MCA, we expect to find additional judging elements to evaluate the general results of FRIs in the emergency response field.