Artificial Intelligence (AI) refers to the simulation of human intelligence in machines that are designed to think and act like humans. The term is often associated with computer systems or robots capable of performing tasks typically requiring human intellect, such as visual perception, speech recognition, decision-making, and language translation.
The field of AI has evolved significantly since its conceptualization in the mid-20th century when Alan Turing proposed what is now known as the "Turing Test" to measure a machine's ability to exhibit intelligent behavior equivalent or indistinguishable from that of a human. Today, AI encompasses various technologies and methodologies such as Machine Learning (ML), Natural Language Processing (NLP), Computer Vision, Robotics, and Expert Systems among others.
Machine learning is one subset of AI where algorithms learn patterns in data to make predictions or decisions without being explicitly programmed for specific tasks. It includes techniques like supervised learning, unsupervised learning, reinforcement learning etc., which are used across various industries such as healthcare, finance and retail among others.
Natural Language Processing (NLP) is another subset of AI that focuses on the interaction between computers and humans using natural language. It involves tasks like speech recognition, sentiment analysis, text translation etc., which are used in applications ranging from virtual assistants