Package org.encog.neural.cpn

Source Code of org.encog.neural.cpn.PersistCPN

/*
* Encog(tm) Core v3.3 - Java Version
* http://www.heatonresearch.com/encog/
* https://github.com/encog/encog-java-core
* Copyright 2008-2014 Heaton Research, 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.
*  
* For more information on Heaton Research copyrights, licenses
* and trademarks visit:
* http://www.heatonresearch.com/copyright
*/
package org.encog.neural.cpn;

import java.io.InputStream;
import java.io.OutputStream;
import java.util.Map;

import org.encog.mathutil.matrices.Matrix;
import org.encog.persist.EncogFileSection;
import org.encog.persist.EncogPersistor;
import org.encog.persist.EncogReadHelper;
import org.encog.persist.EncogWriteHelper;
import org.encog.persist.PersistConst;

/**
* Persist a CPN network.
*/
public class PersistCPN implements EncogPersistor {

  /**
   * The input to instar property.
   */
  final static String PROPERTY_inputToInstar = "inputToInstar";
 
  /**
   * The instar to input property.
   */
  final static String PROPERTY_instarToInput = "instarToInput";
 
  /**
   * The winner count property.
   */
  final static String PROPERTY_winnerCount = "winnerCount";

  /**
   * {@inheritDoc}
   */
  @Override
  public int getFileVersion() {
    return 1;
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public String getPersistClassString() {
    return "CPN";
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public Object read(final InputStream is) {
    Map<String, String> networkParams = null;
    final EncogReadHelper in = new EncogReadHelper(is);
    EncogFileSection section;
    int inputCount = 0;
    int instarCount = 0;
    int outputCount = 0;
    int winnerCount = 0;
    Matrix m1 = null;
    Matrix m2 = null;

    while ((section = in.readNextSection()) != null) {
      if (section.getSectionName().equals("CPN")
          && section.getSubSectionName().equals("PARAMS")) {
        networkParams = section.parseParams();
      }
      if (section.getSectionName().equals("CPN")
          && section.getSubSectionName().equals("NETWORK")) {
        final Map<String, String> params = section.parseParams();

        inputCount = EncogFileSection.parseInt(params,
            PersistConst.INPUT_COUNT);
        instarCount = EncogFileSection.parseInt(params,
            PersistConst.INSTAR);
        outputCount = EncogFileSection.parseInt(params,
            PersistConst.OUTPUT_COUNT);
        winnerCount = EncogFileSection.parseInt(params,
            PersistCPN.PROPERTY_winnerCount);
        m1 = EncogFileSection.parseMatrix(params,
            PersistCPN.PROPERTY_inputToInstar);
        m2 = EncogFileSection.parseMatrix(params,
            PersistCPN.PROPERTY_instarToInput);
      }
    }

    final CPN result = new CPN(inputCount, instarCount, outputCount,
        winnerCount);
    result.getProperties().putAll(networkParams);
    result.getWeightsInputToInstar().set(m1);
    result.getWeightsInstarToOutstar().set(m2);
    return result;
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public void save(final OutputStream os, final Object obj) {
    final EncogWriteHelper out = new EncogWriteHelper(os);
    final CPN cpn = (CPN) obj;
    out.addSection("CPN");
    out.addSubSection("PARAMS");
    out.addProperties(cpn.getProperties());
    out.addSubSection("NETWORK");

    out.writeProperty(PersistConst.INPUT_COUNT, cpn.getInputCount());
    out.writeProperty(PersistConst.INSTAR, cpn.getInstarCount());
    out.writeProperty(PersistConst.OUTPUT_COUNT, cpn.getOutputCount());
    out.writeProperty(PersistCPN.PROPERTY_inputToInstar,
        cpn.getWeightsInputToInstar());
    out.writeProperty(PersistCPN.PROPERTY_instarToInput,
        cpn.getWeightsInstarToOutstar());
    out.writeProperty(PersistCPN.PROPERTY_winnerCount,
        cpn.getWinnerCount());

    out.flush();
  }

}
TOP

Related Classes of org.encog.neural.cpn.PersistCPN

TOP
Copyright © 2018 www.massapi.com. All rights reserved.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.