/**
* SVM trainer
*
* @param dataTrain
* @param dataTest
*/
public static void trainModelLibSVM(Instances dataTrain, Instances dataTest) {
try {
LibSVM classifier = new LibSVM();
CVParameterSelection ps = new CVParameterSelection();
ps.setClassifier(classifier);
ps.setNumFolds(5); // using 5-fold CV
// ps.addCVParameter("C 0.1 0.5 5");
// build and output best options
ps.buildClassifier(dataTrain);
Evaluation eval = new Evaluation(dataTrain);
eval.evaluateModel(ps, dataTest);
System.out.println("Results of the set :::::::::::::::::::::: ");
System.out.println(
"Percentage of correctly classified instances : "
+ eval.pctCorrect()
+ "\n"
+ "Percentage of incorrectly classified instances : "
+ eval.pctIncorrect());
System.out.println("No of correct predictions : " + eval.correct());
System.out.println("TRUTHFUL");
System.out.println(
"Precision : "
+ eval.precision(0)
+ "\n"
+ "Recall : "
+ eval.recall(0)
+ "\n"
+ "F measure/score : "
+ eval.fMeasure(0));
System.out.println("DECEPTIVE");
System.out.println(
"Precision : "
+ eval.precision(0)
+ "\n"
+ "Recall : "
+ eval.recall(1)
+ "\n"
+ "F measure/score : "
+ eval.fMeasure(1));
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}