公开(公告)号：US20170228662A1

公开(公告)日：2017-08-10

申请号：US15429088

申请日：2017-02-09

Applicant: Google Inc.

Inventor： Shixiang Gu ,  Timothy Paul Lillicrap ,  Ilya ISutskever ,  Sergey Vladimir Levine

IPC: G06N99/00 ,  G06N7/00

CPC classification number: G06N3/0427 ,  G06N3/08

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for computing Q values for actions to be performed by an agent interacting with an environment from a continuous action space of actions. In one aspect, a system includes a value subnetwork configured to receive an observation characterizing a current state of the environment and process the observation to generate a value estimate; a policy subnetwork configured to receive the observation and process the observation to generate an ideal point in the continuous action space; and a subsystem configured to receive a particular point in the continuous action space representing a particular action; generate an advantage estimate for the particular action; and generate a Q value for the particular action that is an estimate of an expected return resulting from the agent performing the particular action when the environment is in the current state.