Fecha de publicación: 15/12/2022 Fuente: WIPO (eseential oils OR extracts) The present invention provides an artificial intelligence device comprising: a communication unit for communicating with the outside; an input/output unit for receiving a signal from a user and outputting a process result; and a control unit. The control unit: outputs a conversational interface for conversation with the user when the user accesses a video editing system; receives, through the conversational interface, a video uploaded by the user; outputs, through the conversational interface, a conversation for editing the video; extracts, from the conversation, a keyword for editing the video; and edits the video on the basis of the extracted keyword.