Abstract: A method of operating a service providing device includes: collecting a source image and processing face warping of the collected source image to transform the collected source image into a warping image based on a benchmark image; constructing, using the face warped source image, a style database to which style information of the source image is mapped; and providing a style recommendation service based on style transfer using the style database. The providing includes: performing face warping on a user image input from a user terminal; performing style transfer of the face warped source image in response to the face warped user image; and processing face reverse warping of the image subjected to the style transfer to output as a virtual style synthesis image.

Abstract: A health index maintenance and management system for an artificial intelligence model is for determining the health index of an artificial intelligence model receiving input data so as to classify same into any one of a plurality of classes, and including: a learning device for generating a trained model for predicting the class of input data; a prediction device which receives the trained model generated by the learning device, and which receives input data so as to perform prediction in order to classify the class of the input data; and an operation device which receives the input data and a prediction value from the prediction device, and which calculates the confidence of the input data from the prediction value so as to determine the health index of the trained model used by the prediction device.

Abstract: A method of operating a service providing device includes: collecting a source image and processing face warping of the collected source image to transform the collected source image into a warping image based on a benchmark image; constructing, using the face warped source image, a style database to which style information of the source image is mapped; and providing a style recommendation service based on style transfer using the style database. The providing includes: performing face warping on a user image input from a user terminal; performing style transfer of the face warped source image in response to the face warped user image; and processing face reverse warping of the image subjected to the style transfer to output as a virtual style synthesis image.