1. Artificial intelligence (AI), also known as intelligent machinery and machine intelligence, refers to machines made by people that can show intelligence. Usually artificial intelligence refers to the technology of presenting human intelligence through ordinary computer programs. The word also points out whether and how such an intelligent system can be realized. The definition of artificial intelligence in general textbooks is "research and design of intelligent agents", and intelligent agents refer to systems that can observe the surrounding environment and take actions to achieve their goals. John mccarthy's definition in 1955 is "the science and engineering of making intelligent machines". Andreas Kaplan and Michael Haenlein define artificial intelligence as "the ability of a system to correctly interpret external data, learn from these data, and use these knowledge to achieve specific goals and tasks through flexible adaptation". The research of artificial intelligence is very technical and professional, and all branches are deep and unconnected, so it covers a wide range.
2. The core issues of 2.AI include the ability to build reasoning, knowledge, planning, learning, communication, perception, moving things, using tools and manipulating machinery similar to or even superior to human beings. At present, a large number of tools have applied artificial intelligence, including search, mathematical optimization, logical deduction and so on. Algorithms based on bionics, cognitive psychology, probability theory and economics are also being explored step by step. Thinking comes from the brain, thinking controls behavior, and it needs will to be realized. Thinking is the arrangement of all data sets, which is equivalent to a database, so artificial intelligence may eventually evolve into a machine to replace human beings.