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  3. ULearningAgentsImitationTrainer

ULearningAgentsImitationTrainer

The [ULearningAgentsImitationTrainer](API\Plugins\LearningAgentsTraining\ULearningAgentsImitationTrainer) enable imitation learning, i.e. learning from human/AI demonstrations.

API > API/Plugins > API/Plugins/LearningAgentsTraining

Inheritance Hierarchy

References

   
Module LearningAgentsTraining
Header /Engine/Plugins/Experimental/LearningAgents/Source/LearningAgentsTraining/Public/LearningAgentsImitationTrainer.h
Include #include "LearningAgentsImitationTrainer.h"

Syntax

UCLASS (BlueprintType, Blueprintable)  
class ULearningAgentsImitationTrainer : public ULearningAgentsManagerListener

Remarks

The ULearningAgentsImitationTrainer enable imitation learning, i.e. learning from human/AI demonstrations. Imitation training is typically much faster than reinforcement learning, but requires gathering large amounts of data in order to generalize. This can be used to initialize a reinforcement learning policy to speed up initial exploration.

Constructors

  Type Name Description
Public function   -- Setup --
Public function    

Destructors

  Type Name Description
Public function Virtual    

Functions

  Type Name Description
Public function UFunction BlueprintCallable, Category, Meta void

BeginTraining ( const ULearningAgentsRecording* Recording,
const FLearningAgentsImitationTrainerSettings& ImitationTrainerSettings,
const FLearningAgentsImitationTrainerTrainingSettings& ImitationTrainerTrainingSettings,
const FLearningAgentsTrainerProcessSettings& ImitationTrainerPathSettings
)

 Begins the training process with the provided settings.
Public function UFunction BlueprintCallable, Category void Stops the training process.
Public function Const UFunction BlueprintPure, Category bool Returns true if the trainer has failed to communicate with the external training process.
Public function Const UFunction BlueprintPure, Category bool Returns true if the trainer is currently training; Otherwise, false.
Public function UFunction BlueprintCallable, Category void Iterates the training process and gets the updated policy network.
Public function Static UFunction BlueprintCallable, Category, Meta ULearningAgentsImitationTrainer * Constructs the imitation trainer and runs the setup functions.
Public function UFunction BlueprintCallable, Category, Meta void

RunTraining ( const ULearningAgentsRecording* Recording,
const FLearningAgentsImitationTrainerSettings& ImitationTrainerSettings,
const FLearningAgentsImitationTrainerTrainingSettings& ImitationTrainerTrainingSettings,
const FLearningAgentsTrainerProcessSettings& ImitationTrainerPathSettings
)

 Convenience function that runs a basic training loop.
Public function void Initializes the imitation trainer and runs the setup functions.

Overridden from UObject

  Type Name Description
Public function Virtual void Will automatically call EndTraining if training is still in-progress when the object is destroyed.

See Also

ULearningAgentsInteractor to understand how observations and actions work.

ULearningAgentsController to understand how we can manually perform actions via a human or AI.

ULearningAgentsRecorder to understand how to make new recordings.

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