Patent ID: 11887000
Assignee: DEEPMIND TECHNOLOGIES LIMITED
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 16:
17. One or more non-transitory computer storage media storing instructions that when executed by one or more computers cause the one or more computers to perform operations comprising:
selecting an action to be performed by a reinforcement learning agent interacting with an environment, comprising:
receiving a current observation characterizing a current state of the environment;
for each action of a plurality of actions that can be performed by the agent to interact with the environment:
sampling one or more random values;
for each random value:
processing a network input that comprises the action, the current observation, and the random value using an action selection neural network, in accordance with values of a set of action selection neural network parameters, to generate a network output that defines a sample from a return distribution,
wherein the return distribution defines a probability distribution over possible returns that would result from the agent performing the action in response to the observation; and

determining a measure of central tendency of the samples from the return distribution; and

selecting an action from the plurality of actions to be performed by the agent in response to the current observation using the measures of central tendency for the actions.