49 lines
1.7 KiB
Java
49 lines
1.7 KiB
Java
|
/*******************************************************************************
|
||
|
|
* Copyright (c) 2015-2018 Skymind, Inc.
|
||
|
|
*
|
||
|
|
* This program and the accompanying materials are made available under the
|
||
|
|
* terms of the Apache License, Version 2.0 which is available at
|
||
|
|
* https://www.apache.org/licenses/LICENSE-2.0.
|
||
|
|
*
|
||
|
|
* Unless required by applicable law or agreed to in writing, software
|
||
|
|
* distributed under the License 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.
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: Apache-2.0
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
package org.deeplearning4j.earlystopping.termination;
|
||
|
|
|
||
|
|
import lombok.Data;
|
||
|
|
import org.nd4j.shade.jackson.annotation.JsonProperty;
|
||
|
|
|
||
|
|
/** Iteration termination condition for terminating training if the minibatch score exceeds a certain value.
|
||
|
|
* This can occur for example with a poorly tuned (too high) learning rate
|
||
|
|
*/
|
||
|
|
@Data
|
||
|
|
public class MaxScoreIterationTerminationCondition implements IterationTerminationCondition {
|
||
|
|
|
||
|
|
private double maxScore;
|
||
|
|
|
||
|
|
public MaxScoreIterationTerminationCondition(@JsonProperty("maxScore") double maxScore) {
|
||
|
|
this.maxScore = maxScore;
|
||
|
|
}
|
||
|
|
|
||
|
|
@Override
|
||
|
|
public void initialize() {
|
||
|
|
//no op
|
||
|
|
}
|
||
|
|
|
||
|
|
@Override
|
||
|
|
public boolean terminate(double lastMiniBatchScore) {
|
||
|
|
return lastMiniBatchScore > maxScore || Double.isNaN(lastMiniBatchScore);
|
||
|
|
}
|
||
|
|
|
||
|
|
@Override
|
||
|
|
public String toString() {
|
||
|
|
return "MaxScoreIterationTerminationCondition(" + maxScore + ")";
|
||
|
|
}
|
||
|
|
}
|