ai.djl.modality.rl.agent.RlAgent Maven / Gradle / Ivy
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/*
* Copyright 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License"). You may not use this file except in compliance
* with the License. A copy of the License is located at
*
* http://aws.amazon.com/apache2.0/
*
* or in the "license" file accompanying this file. This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES
* OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions
* and limitations under the License.
*/
package ai.djl.modality.rl.agent;
import ai.djl.modality.rl.env.RlEnv;
import ai.djl.modality.rl.env.RlEnv.Step;
import ai.djl.ndarray.NDList;
/**
* An {@link RlAgent} is the model or technique to decide the actions to take in an {@link RlEnv}.
*/
public interface RlAgent {
/**
* Chooses the next action to take within the {@link RlEnv}.
*
* @param env the current environment
* @param training true if the agent is currently traning
* @return the action to take
*/
NDList chooseAction(RlEnv env, boolean training);
/**
* Trains this {@link RlAgent} on a batch of {@link Step}s.
*
* @param batchSteps the steps to train on
*/
void trainBatch(Step[] batchSteps);
}