High Quality Content by WIKIPEDIA articles! Alpha (?) is a parameter used in artificial intelligence to specify how much weight will be given to new information. An alpha value might be expressed in the range between 0 and 1. A value of 0 means that the agent completely ignores any new information, while a value of 1 means it only remembers the latest piece of information. A typical equation detailing the weighting role of alpha might be: new_policy = (historical_data * (1 - ?)) + (new_data * ?) It is used in Q-learning and SARSA, which is closely related.

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