org.nd4j.linalg.dataset.api.preprocessor.NormalizerStrategy Maven / Gradle / Ivy
package org.nd4j.linalg.dataset.api.preprocessor;
import org.nd4j.linalg.api.ndarray.INDArray;
import org.nd4j.linalg.dataset.api.preprocessor.stats.NormalizerStats;
import java.io.Serializable;
/**
* Interface for strategies that can normalize and denormalize data arrays based on statistics of the population
*
* @author Ede Meijer
*/
public interface NormalizerStrategy extends Serializable {
/**
* Normalize a data array
*
* @param array the data to normalize
* @param stats statistics of the data population
*/
void preProcess(INDArray array, INDArray maskArray, S stats);
/**
* Denormalize a data array
*
* @param array the data to denormalize
* @param stats statistics of the data population
*/
void revert(INDArray array, INDArray maskArray, S stats);
/**
* Create a new {@link NormalizerStats.Builder} instance that can be used to fit new data and of the type that
* belongs to the current NormalizerStrategy implementation
*
* @return the new builder
*/
S.Builder newStatsBuilder();
}