TY JOUR TI RESEARCHING METHODS FOR PROCESSING TEXT INFORMATION AND REVIEWING THE STAGES OF AN ARTIFICIAL INTELLIGENCE MODEL CREATION AT PRODUCING CHATBOTS KW chatbot KW neural network KW text KW lemmatization KW vectorization KW machine learning JO Automation and modeling in design and management AU Ivanova, A.V. AU Kuz'menko, A.A. AU Filippov, R.A. AU Filippova, L.B. AU Sazonova, A.S. AU Leonov, Y.A. PY 2021 IS 2021 PB Bryansk State Technical University