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Please predict whether this patent is acceptable.PATENT ABSTRACT: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for reinforcement learning using a partitioned reinforcement learning input state space (RL input state space). One of the methods includes maintaining data defining a plurality of partitions of a space of reinforcement learning (RL) input states, each partition corresponding to a respective supervised learning model; obtaining a current state representation that represents a current state of the environment; for the current state representation and for each action in the set of actions, identifying a respective partition and processing the action and the current state representation using the supervised learning model that corresponds to the respective partition to generate a respective current value function estimate; and selecting an action to be performed by the computer-implemented agent in response to the current state representation using the respective current value function estimates.