Artificial intelligence device

An artificial intelligence (AI) device comprising:

• a content output interface configured to output video data contained in content and voice data contained in the content;
• and
• a processor configured to:
• acquire a voice recognition result by providing, to a voice recognition model, content extraction information including at least one of video information acquired from the video data in the content or tag information of the content and the voice data, and
• control the content output interface to output the voice recognition result,
• wherein the voice recognition model includes a recurrent neural network (RNN), and
• wherein the processor is configured to:
• set, for the RNN, an initial hidden state corresponding to the tag information of the content and video information extracted from a first scene of the content;
• and
• provide first voice data, which is output from the first scene, to the RNN having the initial hidden state, to acquire a voice recognition result corresponding to the first voice data.

An operating method of an artificial intelligence (AI) device, the operating method comprising:

• acquiring content extraction information including at least one of video information acquired from video data contained in content or tag information of the content;
• acquiring a voice recognition result by providing, to a voice recognition model, the content extraction information and voice data contained in the content;
• and
• outputting the video data contained in the content, the voice data contained in the content, and the voice recognition result,
• wherein the voice recognition model includes a recurrent neural network (RNN), and
• wherein the acquiring of the voice recognition result includes:
• setting, for the RNN, an initial hidden state corresponding to the tag information of the content;
• and
• providing the voice data to the RNN having the initial hidden state, to acquire the voice recognition result corresponding to the voice data.

An operating method of an artificial intelligence (AI) device, the operating method comprising:

• acquiring content extraction information including at least one of video information acquired from video data contained in content or tag information of the content;
• acquiring a voice recognition result by providing, to a voice recognition model, the content extraction information and voice data contained in the content;
• and
• outputting the video data contained in the content, the voice data contained in the content, and the voice recognition result,
• wherein the voice recognition model includes a recurrent neural network (RNN), and
• wherein the acquiring of the voice recognition result includes:
• setting, for the RNN, an initial hidden state corresponding to the tag information of the content and video information extracted from a first scene of the content;
• and
• providing first voice data, which is output from the first scene, to the RNN having the initial hidden state, to acquire a voice recognition result corresponding to the first voice data.