用理工英语，给AI下一个定义，约200词

Artificial intelligence (AI) refers to the ability of machines to perform tasks that typically require human-like cognitive abilities, such as the ability to learn, reason, adapt, and make decisions. AI involves creating algorithms and computer programs that can analyze and process vast amounts of data to recognize patterns and make predictions based on that data. This technology can be used in a wide range of applications, from autonomous vehicles and smart homes to healthcare and finance.

AI is often divided into two categories: narrow or weak AI and general or strong AI. Narrow AI is designed to perform specific tasks, such as image or speech recognition, while general AI is capable of performing any intellectual task that a human can do.

The development of AI has been driven by advances in machine learning, which uses statistical models and algorithms to enable machines to learn from data without being explicitly programmed. Deep learning, a branch of machine learning, involves training neural networks, which are models that are designed to mimic the structure and function of the human brain.

AI has the potential to revolutionize many aspects of our lives, from improving healthcare outcomes to increasing efficiency in manufacturing and transportation. However, there are also concerns about the impact of AI on employment and privacy, as well as the ethical considerations around the use of these technologies.