Implementasi Feed Forward Neural Network dalam ...
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Implementasi Feed Forward Neural Network dalam ...
network menggunakan beberapa kelas Java , diantaranya : 1. Perceptron.java. (Kelas Perceptron). 2. MLPerceptron.java (Kelas Multilayer Perceptron). 3. ANN.
Implementasi Feed Forward Neural Network dalam Bahasa JAVA 1. Feed Forward Neural Network
Implementasi algoritma pengklasifikasian dengan feed forward neural network menggunakan beberapa kelas Java , diantaranya : 1. Perceptron.java 2. MLPerceptron.java 3. ANN.java
(Kelas Perceptron) (Kelas Multilayer Perceptron) (Kelas Multilayer Perceptron, dapat
dikenali WEKA) Berikut adalah method dan atribut pada masing masing kelas
1.
Kelas Perceptron (Perceptron.Java)
Method & Atribut List inputs List weights List weightedInputs
Kegunaan List input seluruh sinyal yang memasuki perceptron ( X0 ,X1 , ... , Xn) List seluruh bobot pada perceptron ( w0 , w1 , ... , wn) List input seluruh sinyal yang sudah dikalikan dengan bobot yang bersesuaian (X0 * w0 , X1 * w1 , ... , Xn * Wn) Total keseluruhan bilangan pada list weightedInputs Hasil fungsi sigmoid terhadap atribut summed. Learning Rate dari perceptron Nilai error pada perceptron Fungsi sigmoid Menerima seluruh sinyal, menghasilkan nilai output pada perceptron Melakukan update pada weight berdasarkan desired output
2.
Kelas Multilayer Perceptron (MLPerceptron.Java)
Method & Atribut List hiddenLayer List outputLayer List desiredOutput Int nHiddenLayerNeuron Int nOutputLayerNeuron Int nInput Int nClass Double learningRate Double output Double proses(List x) Void updateWeight(double doutput) 3.
List sinyal output yang diinginkan. Berdasarkan data latih. Jumlah perceptron pada hidden layer Jumlah perceptron pada output layer Jumlah sinyal input pada Multilayer Perceptron Jumlah kelas klasifikasi Learning rate multilayer perceptron. Hasil kelas klasifikasi oleh Multilayer Perceptron Menerima seluruh sinyal, menghasilkan nilai output pada multilayer perceptron. Melakukan update pada weight berdasarkan desired output
Kelas Multilayer Perceptron , dikenali WEKA (ANN.java)
Method & Atribut Instances trainData MLPerceptron ml Int numInput Int numOutput Double learningrate Int numHiddenLayerNeuron Void buildClassifier(Instances data) Double
Kegunaan List seluruh perceptron pada hiddenLayer List seluruh perceptron pada outputLayer
Kegunaan Seluruh instances data latih Multilayer Perceptron Jumlah atribut pada instance. Jumlah kelas klasifikasi pada data latih. Learning rate FFNN Jumlah perceptron pada hiddenlayer. Melakukan pembuatan model pembelajaran berdasarkan instances data latih yang dimasukkan. Melakukan pengklasifikasian terhadap
classifyInstances(Instance instance)
instance tunggal berdasarkan moodel pembelajaran yang telah dibuat
Berikut adalah source code dari program (Dapat diakses online di https://github.com/adipurnama141/NB-FFNN)
public class Perceptron { private private private private private private private private
int nInput; List inputs = new ArrayList(); List weights = new ArrayList(); List weightedInputs = new ArrayList(); Double summed; Double output; Double learningRate; double error;
private static Double sigmoid(Double x){ return (1/(1 + Math.pow(Math.E,(-1*x))));} public void showWeights(){ for (int i = 0; i < weights.size() ; i++){ System.out.println(weights.get(i));}} public Double getOutput(){ return output;} public Double process(List in){ //tambahkan bias this.inputs = new ArrayList(in); inputs.add(0, new Double(1)); //System.out.println("Inputs w Bias : " + inputs); //System.out.println("Weight : "+weights); //weight input for(int i=0 ; i < inputs.size() ; i++){