What is AI? Artificial intelligence is a new technological science that researches and develops theories, methods, technologies and application systems used to simulate, extend and expand human intelligence. It is a process of cognition, decision-making and feedback. Artificial intelligence technology has become the most advanced technology in the field of science and technology. Many countries are competing to open up a new direction of this technology research and strive to seize the commanding heights in this field. What is the core problem of AI technology?