Abstract: A method of tracking a dialogue state according to an embodiment of the present application includes: acquiring a trained dialogue state tracking model; acquiring target dialogue data; acquiring dialogue summary data from the target dialogue data using the dialogue state tracking model; and generating a dialogue state template from the dialogue summary data, in which the dialogue state tracking model includes an input layer for receiving the target dialogue data, an output layer for outputting the dialogue summary data, and a hidden layer having a plurality of nodes connecting the input layer and the output layer, and is trained using a training set that includes dialogue data and a dialogue summary sentence generated from dialogue state data related to the dialogue data.

Abstract: A method for predicting a test score of a user through an artificial intelligence model by a terminal, includes: delivering training data of the user to a first layer for embedding; embedding the training data through the first layer; delivering an embedding vector from the first layer to a second layer including a compressive transformer; delivering an output value from the second layer to a third layer for predicting the test score; and outputting a prediction value for predicting the test score from the third layer.

Abstract: A user knowledge tracking device is provided. The user knowledge tracking device use a transformer structure-based artificial intelligence model as a knowledge tracking model which is trained by inputting exercise information to an encoder thereof and inputting response information to a decoder thereof so as to predict a user's correct answer probability based on the trained knowledge tracking model.