private Double evaluateSupportVectorMachine(
SupportVectorMachine supportVectorMachine, double[] input) {
SupportVectorMachineModel supportVectorMachineModel = getModel();
double result = 0d;
Kernel kernel = supportVectorMachineModel.getKernel();
Coefficients coefficients = supportVectorMachine.getCoefficients();
Iterator<Coefficient> coefficientIterator = coefficients.iterator();
SupportVectors supportVectors = supportVectorMachine.getSupportVectors();
Iterator<SupportVector> supportVectorIterator = supportVectors.iterator();
Map<String, double[]> vectorMap = getVectorMap();
while (coefficientIterator.hasNext() && supportVectorIterator.hasNext()) {
Coefficient coefficient = coefficientIterator.next();
SupportVector supportVector = supportVectorIterator.next();
double[] vector = vectorMap.get(supportVector.getVectorId());
if (vector == null) {
throw new InvalidFeatureException(supportVector);
}
Double value = KernelUtil.evaluate(kernel, input, vector);
result += (coefficient.getValue() * value);
}
if (coefficientIterator.hasNext() || supportVectorIterator.hasNext()) {
throw new InvalidFeatureException(supportVectorMachine);
}
result += coefficients.getAbsoluteValue();
return result;
}
