Method and device for stepwise purification of sentences with generative artificial intelligence

A method of generating stepwise purified sentences using a deep learning-based interactive model, the method comprising:

• receiving input sentences by a user's terminal;
• detecting malicious words in the input sentences, and generating a plurality of stepwise purified sentences using a plurality of types of purification including purification of the malicious words according to stepwise sentence purification by a language purification model part of a stepwise purified sentence generation system;
• and
• presenting, by the terminal, the plurality of stepwise purified sentences to a user to allow the user to select one of the plurality of stepwise purified sentences, and transmitting, by the terminal, the selected stepwise purified sentence to the stepwise purified sentence generation system to determine a final purified sentence, wherein
• the language purification model part includes a model repeatedly performing different types of sentence purification given at each stage, and
• the different types of sentence purification include masking malicious words, replacing masked words with purified terms, and softening the entire sentence.