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Reinforcement Learning: Q-learning is a reinforcement learning algorithm that involves training an agent to make decisions by interacting with an environment. In the case of Tic-Tac-Toe, the agent learns to make moves on the game board to maximize its chances of winning.
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Q-Table: In Q-learning, a Q-table is used to store the expected rewards for taking various actions in different states of the game. The agent updates this table through iterative learning to make better decisions over time.
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States and Actions: In the context of Tic-Tac-Toe, states represent the current arrangement of Xs and Os on the board, and actions correspond to valid moves the agent can make. The agent chooses actions based on the information in the Q-table.
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Rewards: The agent receives rewards for its actions, with a positive reward for winning the game, a negative reward for losing, and potentially smaller rewards for other outcomes like drawing the game.
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Exploration vs. Exploitation: Q-learning balances exploration (trying new actions to discover their rewards) and exploitation (choosing the best-known actions) to gradually improve its game-playing strategy.
Tic-Tac-Toe Q-Learning is a beginner-friendly example of using reinforcement learning to solve a simple game. It can serve as a stepping stone to understanding more complex problems and reinforcement learning techniques. The end goal is to have an agent that can play Tic-Tac-Toe optimally, making the best moves possible to either win or force a draw in every game.