An emotion recognizer according to an aspect of the present invention includes: an uni-modal preprocessor configured to include a plurality of recognizers for each modal learned to recognize emotion information of a user contained in uni-modal input data; and a multi-modal recognizer configured to merge output data of the plurality of recognizers for each modal, and be learned to recognize the emotion information of the user contained in the merged data, wherein the emotion recognizer outputs a complex emotion recognition result including an emotion recognition result of each of the plurality of recognizers for each modal and an emotion recognition result of the multi-modal recognizer.
EMOTION RECOGNIZER, ROBOT INCLUDING THE SAME, AND SERVER INCLUDING THE SAME