Artificial [[intelligence]] (AI) refers to the [[simulation]] of human intelligence in [[machine]]s, enabling them to perform [[task]]s that typically require human [[cognitive]] abilities. These tasks include [[learning]], [[reasoning]], [[problem-solving]], [[perception]], [[language]] [[understanding]], and [[decision-making]]. AI systems can be rule-based (symbolic AI) or use [[machine learning]], including [[deep learning]], to improve [[performance]] through [[experience]]. AI is applied in various fields such as healthcare, finance, robotics, and [[natural language processing]].