I am trying to run the Massive Online Analysis (MOA) demo code in Netbeans. Here is the code:
package javaapplication10_moa;
import moa.classifiers.trees.HoeffdingTree;
import moa.classifiers.Classifier;
import moa.core.TimingUtils;
import moa.streams.generators.RandomRBFGenerator;
import com.yahoo.labs.samoa.instances.Instance;
import java.io.IOException;
public class JavaApplication10_MOA {
public JavaApplication10_MOA(){
}
public void run(int numInstances, boolean isTesting){
Classifier learner = new HoeffdingTree();
RandomRBFGenerator stream = new RandomRBFGenerator();
stream.prepareForUse();
learner.setModelContext(stream.getHeader());
learner.prepareForUse();
int numberSamplesCorrect = 0;
int numberSamples = 0;
boolean preciseCPUTiming = TimingUtils.enablePreciseTiming();
long evaluateStartTime = TimingUtils.getNanoCPUTimeOfCurrentThread();
while (stream.hasMoreInstances() && numberSamples < numInstances) {
Instance trainInst = stream.nextInstance().getData();
if (isTesting) {
if (learner.correctlyClassifies(trainInst)){
numberSamplesCorrect++;
}
}
numberSamples++;
learner.trainOnInstance(trainInst);
}
double accuracy = 100.0 * (double) numberSamplesCorrect/ (double) numberSamples;
double time = TimingUtils.nanoTimeToSeconds(TimingUtils.getNanoCPUTimeOfCurrentThread()- evaluateStartTime);
System.out.println(numberSamples + " instances processed with " + accuracy + "% accuracy in "+time+" seconds.");
}
public static void main(String[] args) throws IOException {
JavaApplication10_MOA exp = new JavaApplication10_MOA();
exp.run(1000000, true);
}
}
And here is the conclusion:
Unable to access tools environment. Check if there is a jar file containing the SizeOfAgent class; the java "-javaagent" command line argument is specified. 1,000,000 copies processed with 91.0458% accuracy in 5.5 seconds. BUILD SUCCESSFUL (total time: 5 seconds)
, Netbeans , . Netbeans Java, "" → " " → "". -javaagent: sizeofag.jar. !:(
, , .