Q- Star is an AI concept that falls within the realm of reinforcement learning. Reinforcement learning is an Ai trainning approach. This technique involves AI learning through human feddback, continually improving it's understanding of the environment and decision making. It is named after a Q-value function. This function is denoted as this [Q( S , A)] where S represent the State and A signifies the Action. Q* is a function that encapsulates the most optimal point.
To illustrate, consider a game of chess imagine your chess pieces occupying a specific square on the board. It's position would be termed state S. The subsequent move you intend to make in chess would be referred to as action A. It's Q-value function would predict all possible scenarios. All the potential outcomes for every possible move you could make. Following a through analysis, the funtion identifies the best possible move based on your current position. The best and most optimal move derived by the Q-value function is termed Q-star in mathematical language. This would be the best move for you to play in any given situation in this game of chess.