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  • 大小: 48KB
    文件類型: .rar
    金幣: 2
    下載: 0 次
    發布日期: 2021-05-26
  • 語言: Java
  • 標簽: java??算法??

資源簡介

java實現的bp算法,可視化操作,詳細的設置、導入導出數據與學習功能

資源截圖

代碼片段和文件信息

/*
?*?作者:張珩???信研0802?2008000757
?*?內容:BP神經網絡算法
?*/
package?neuro;

import?ui.*;
import?javax.swing.*;
import?java.awt.BorderLayout;

//BP算法類
public?class?NetAlgo?extends?JPanel?implements?Runnable
{
//?第一個數記錄有幾層網絡,后面記錄每一層有多少個神經元
private?int[]?netlayers;

//?二維數組存放神經元,動態分配,每一維不一定等長
private?Neuron[][]?neuroArray;

//?用三維數組存放網絡的權重,每一維不一定等長Delta
private?double[][][]?netWeight;

//?用于存儲前一次的變化權重用作動量影子
private?double[][][]?deltaWeight;

//?原始數據學習集
private?double[][]?origLearnData;

//?歸一化后的學習數據集
private?double[][]?learnData;

//?原始泛化數據集
private?double[][]?origGenerData;

//?歸一化后的泛化數據集
private?double[][]?generData;

//?存放最大最小值,用于歸一化0行存最小值,1行存最大值
private?double[][]?minMax;

//?均方差數組,
private?double[]?meanErrSum;

//?相對誤差和數組
private?double[]?relaErrSum;

//?學習速率
private?double?eta?=?0.8;

//?動量項因子
private?double?alpha?=?0.7;

//?學習要達到的誤差精度
private?double?precise?=?0.0005;

//?最多允許學習次數
private?int?maxCount?=?2000;

//?存放輸出曲線的平均誤差率的曲線的類
private?DrawLearn[]?learnCurv;

//?存放回想實際輸出與期望輸出的關系的曲線
private?DrawTest[]?reCallCurv;

//?存放泛化實際輸出與期望輸出的關系的曲線
private?DrawTest[]?generCurv;

//?是否利用原有網絡
private?boolean?isHaveNet;

//?算法執行類型1表示學習,2表示回想,3表示泛化
private?int?execType?=?1;

//?回想期望值,實際值,相對誤差\表第一維表示輸出個數
private?double?mixReCall[][][];

//?泛化期望值,實際值,相對誤差表
private?double?mixGeneral[][][];

//?顯示網絡參數
private?JLabel?jlPara;

//?顯示數據
private?JTextArea?showData;
private?JScrollPane?showPanel;

public?NetAlgo()
{
setLayout(new?BorderLayout());

jlPara?=?new?JLabel();
jlPara.setText(“??你好!??你已進入BP神經網絡!“);
add(jlPara?BorderLayout.SOUTH);

showData?=?new?JTextArea();
showPanel?=?new?JScrollPane(showData);
showData.setAutoscrolls(true);
showData.setLineWrap(true);
add(showPanel?BorderLayout.CENTER);
}

//?設置網絡結構---層數和每層節點個數
public?void?setlayers(int[]?layers)
{
netlayers?=?layers;
}

//?將網絡參數寫入算法類
public?void?setParameter(double[]?parameter)
{
//?學習速率
eta?=?parameter[0];
//?動量項因子
alpha?=?parameter[1];
//?學習要達到的誤差精度
precise?=?parameter[2];
//?最多允許學習次數
maxCount?=?(int)?parameter[3];
}

//?設置網絡結構---初始化網絡
public?void?setNeuros(Neuron[][]?neurons)
{
neuroArray?=?neurons;
}

//?設置網絡的連接權值
public?void?setWeight(double[][][]?weights)
{
netWeight?=?weights;
}

//?初始化deltaWeight
public?void?initDeltaWeight()
{
deltaWeight?=?new?double[neuroArray.length?-1][][];
for?(int?i?=?0;?i? {
deltaWeight[i]?=?new?double[neuroArray[i].length][];
for?(int?j?=?0;?j? {
deltaWeight[i][j]?=?new?double[neuroArray[i?+1].length];
for?(int?k?=?0;?k? {
deltaWeight[i][j][k]?=?Math.random();
}
}
}
}

//?設置網絡權值
public?void?setweights()
{
//?初始化神經網絡連接權值?neuroArray
netWeight?=?new?double[neuroArray.length?-1][][];

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????232??2008-10-09?14:55??neuroNet\.classpath

?????文件????????384??2008-10-09?14:55??neuroNet\.project

?????文件???????6126??2008-11-13?14:37??neuroNet\src\ui\DrawLearn.java

?????文件???????4149??2008-11-05?00:40??neuroNet\src\ui\DrawTest.java

?????文件??????11783??2008-10-18?17:44??neuroNet\src\ui\Mainframe.java

?????文件???????6007??2008-11-11?11:56??neuroNet\src\ui\SetNet.java

?????文件??????16971??2008-11-14?10:40??neuroNet\src\neuro\NetAlgo.java

?????文件????????886??2008-11-14?10:20??neuroNet\src\neuro\Neuron.java

?????文件????????399??2008-11-05?23:57??neuroNet\src\neuro\Point.java

?????文件???????1071??2008-11-14?10:30??neuroNet\bin\ui\DrawLearn$UnChangeHeight.class

?????文件???????1274??2008-11-14?10:30??neuroNet\bin\ui\DrawLearn.class

?????文件????????728??2008-11-14?10:30??neuroNet\bin\ui\DrawPanel$1.class

?????文件???????4929??2008-11-14?10:30??neuroNet\bin\ui\DrawPanel.class

?????文件????????821??2008-11-05?00:40??neuroNet\bin\ui\DrawTest.class

?????文件????????630??2008-10-18?17:44??neuroNet\bin\ui\Mainframe$1.class

?????文件????????983??2008-10-18?17:44??neuroNet\bin\ui\Mainframe$10.class

?????文件????????736??2008-10-18?17:44??neuroNet\bin\ui\Mainframe$2.class

?????文件????????679??2008-10-18?17:44??neuroNet\bin\ui\Mainframe$3.class

?????文件???????1250??2008-10-18?17:44??neuroNet\bin\ui\Mainframe$4.class

?????文件???????1252??2008-10-18?17:44??neuroNet\bin\ui\Mainframe$5.class

?????文件????????883??2008-10-18?17:44??neuroNet\bin\ui\Mainframe$6.class

?????文件????????882??2008-10-18?17:44??neuroNet\bin\ui\Mainframe$7.class

?????文件????????977??2008-10-18?17:44??neuroNet\bin\ui\Mainframe$8.class

?????文件????????977??2008-10-18?17:44??neuroNet\bin\ui\Mainframe$9.class

?????文件???????2529??2008-10-18?17:44??neuroNet\bin\ui\Mainframe$ImpoGenerData.class

?????文件???????2529??2008-10-18?17:44??neuroNet\bin\ui\Mainframe$ImpoLearnData.class

?????文件???????3290??2008-10-18?17:44??neuroNet\bin\ui\Mainframe$loadNet.class

?????文件???????2996??2008-10-18?17:44??neuroNet\bin\ui\Mainframe$saveNet.class

?????文件???????3971??2008-10-18?17:44??neuroNet\bin\ui\Mainframe.class

?????文件???????1056??2008-11-14?10:30??neuroNet\bin\ui\SetNet$1.class

............此處省略17個文件信息

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