ARTIFICIAL INTELLIGENCE DEVICE FOR COMMON SENSE REASONING FOR VISUAL QUESTION ANSWERING AND CONTROL METHOD THEREOF

A method for controlling an artificial intelligence (AI) device can include receiving, via a processor in the AI device, an input image and a query related to the input image, generating, via the processor, an answer prompt template based on the query, the answer prompt template including a sentence containing a mask token located at a position corresponding to an answer within the sentence, and combining the query and the answer prompt template to generate a string of text including the mask token. Also, the method can further include inputting the string of text to a pre-trained mask language module (MLM) and generating a plurality of scores respectfully corresponding to a plurality of answers, each of the plurality of answers being a candidate for replacing the mask token, determining a selected answer among the plurality of answers based on the plurality of scores, and outputting the selected answer.