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Java example source code file (INDArrayAggregator.java)

This example Java source code file (INDArrayAggregator.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

indarray, indarrayaggregator, job, logger, not, override, workaccumulator

The INDArrayAggregator.java Java example source code

 *  * Copyright 2015 Skymind,Inc.
 *  *
 *  *    Licensed under the Apache License, Version 2.0 (the "License");
 *  *    you may not use this file except in compliance with the License.
 *  *    You may obtain a copy of the License at
 *  *
 *  *        http://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.

package org.deeplearning4j.scaleout.aggregator;

import org.canova.api.conf.Configuration;
import org.deeplearning4j.scaleout.job.Job;
import org.nd4j.linalg.api.ndarray.INDArray;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

 * INDArray averager
 * @author Adam Gibson
public class INDArrayAggregator extends WorkAccumulator {
    private INDArray averaged;
    private static final Logger log = LoggerFactory.getLogger(INDArrayAggregator.class);

    public void accumulate(Job toAccumulate) {
        if(toAccumulate.getResult() == null || !(toAccumulate.getResult() instanceof INDArray)) {
            log.warn("Not accumulating result: must be of type INDArray and not null");

        INDArray arr = (INDArray) toAccumulate.getResult();
        if(averaged == null) {
            this.averaged = arr;

        else {

    public Job aggregate() {
        if(averaged == null)
            return empty();
        Job ret =  new Job(averaged.div(seenSoFar),"");
        seenSoFar = 0.0;
        return ret;

    public void init(Configuration conf) {

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