public void updateWeights(TrainingSet tSet, double[] w, int[] m, Classifier baseClassifier) {
int n = w.length;
// update misclassification counts with results from latest classifier
for (int i = 0; i < n; i++) {
Instance instance = tSet.getInstance(i);
Concept actualConcept = baseClassifier.classify(instance);
Concept expectedConcept = instance.getConcept();
if (actualConcept == null || !(actualConcept.getName().equals(expectedConcept.getName()))) {
m[i]++;
}
}
// update weights
double sum = 0.0;
for (int i = 0; i < n; i++) {
sum += (1.0 + Math.pow(m[i], 4));
}
for (int i = 0; i < n; i++) {
w[i] = (1.0 + Math.pow(m[i], 4)) / sum;
}
}
