public void multiclass_linear_smo_new_usage()
{
// Let's say we have the following data to be classified
// into three possible classes. Those are the samples:
//
double[][] inputs =
{
// input output
new double[] { 0, 1, 1, 0 }, // 0
new double[] { 0, 1, 0, 0 }, // 0
new double[] { 0, 0, 1, 0 }, // 0
new double[] { 0, 1, 1, 0 }, // 0
new double[] { 0, 1, 0, 0 }, // 0
new double[] { 1, 0, 0, 0 }, // 1
new double[] { 1, 0, 0, 0 }, // 1
new double[] { 1, 0, 0, 1 }, // 1
new double[] { 0, 0, 0, 1 }, // 1
new double[] { 0, 0, 0, 1 }, // 1
new double[] { 1, 1, 1, 1 }, // 2
new double[] { 1, 0, 1, 1 }, // 2
new double[] { 1, 1, 0, 1 }, // 2
new double[] { 0, 1, 1, 1 }, // 2
new double[] { 1, 1, 1, 1 }, // 2
};
int[] outputs = // those are the class labels
{
0, 0, 0, 0, 0,
1, 1, 1, 1, 1,
2, 2, 2, 2, 2,
};
// Create a one-vs-one learning algorithm using LIBLINEAR's L2-loss SVC dual
var teacher = new MulticlassSupportVectorLearning<Linear>();
teacher.Learner = (p) => new SequentialMinimalOptimization<Linear>()
{
UseComplexityHeuristic = true
};
#if DEBUG
teacher.ParallelOptions.MaxDegreeOfParallelism = 1;
#endif
// Learn a machine
var machine = teacher.Learn(inputs, outputs);
for (int i = 0; i < inputs.Length; i++)
{
double actual = machine.Decide(inputs[i]);
double expected = outputs[i];
Assert.AreEqual(expected, actual);
}
}