Method of processing event and apparatus perporming the same

An event processing method is performed in an event processing device. The event processing method comprises a step for detecting an event from an event source; a step for determining an event population and a non-event population depending on whether the event is detected or not; and a step for determining an event feedback ratio by extracting an event group (hereinafter referred to as an event feedback group) in association with a necessary measure in the determined event population.