{HEAD ~ Various embodiments} of the present invention enable {TAIL ~ a bottom up analysis approach} that derives physiological responses from measured physiological data of viewers of a media, and calculates scores of instances of an event type based on the physiological responses 
enable
{ HEAD ~ Various embodiments } of the present invention enable { TAIL ~ a bottom up analysis approach } that derives physiological responses from measured physiological data of viewers of a media , and calculates scores of instances of an event type based on the physiological responses
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