Unity 机器学习代理工具包 (ML-Agents) 是一个开源项目,它使游戏和模拟能够作为训练智能代理的环境。
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On Demand Decision Making

Description

On demand decision making allows agents to request decisions from their brains only when needed instead of requesting decisions at a fixed frequency. This is useful when the agents commit to an action for a variable number of steps or when the agents cannot make decisions at the same time. This typically the case for turn based games, games where agents must react to events or games where agents can take actions of variable duration.

How to use

In the agent inspector, there is a checkbox called On Demand Decision

Brain Inspector

  • If On Demand Decision is not checked, all the agents will request a new decision every Decision Frequency steps and perform an action every step. In the example above, CollectObservations() will be called every 5 steps and AgentAct() will be called at every step. This means that the agent will reuse the decision the brain has given it.

  • If On Demand Decision is checked, you are in charge of telling the agent when to request a decision and when to request an action. To do so, call the following methods on your agent component.

    • RequestDecision() Call this method to signal the agent that it must collect its observations and ask the brain for a decision at the next step of the simulation. Note that when an agent requests a decision, it will also request an action automatically (This is to ensure that all decisions lead to an action during training)
    • RequestAction() Call this method to signal the agent that it must reuse its previous action at the next step of the simulation. The Agent will not ask the brain for a new decision, it will just call AgentAct() with the same action.