protected override string instanceToLibsvm(weka.core.Instance inst)
{
//StringBuffer.__<clinit>();
//StringBuffer buffer = new StringBuffer(new StringBuilder().append("").append(inst.classValue()).toString());
StringBuffer buffer = new StringBuffer(new StringBuilder().append("").append(inst.classValue() - 1).toString());
for (int i = 0; i < inst.numAttributes(); i++)
{
if ((i != inst.classIndex()) && (inst.value(i) != 0f))
{
buffer.append(new StringBuilder().append(" ").append((int)(i + 1)).append(":").append(inst.value(i)).toString());
}
}
return(buffer.toString());
}
public override double classifyInstance(weka.core.Instance instance)
{
if (m_instances.numInstances() == 0)
{
return(2);
}
if (m_instances.numAttributes() != instance.numAttributes())
{
throw new AssertException("different attribute.");
}
int n = (instance.numAttributes() - 1) / 2;
List <Tuple <int, int> > dist = new List <Tuple <int, int> >();
for (int i = 0; i < m_instances.numInstances(); ++i)
{
int d1 = 0, d2 = 0;
weka.core.Instance instanceI = m_instances.instance(i);
for (int j = 0; j < n; ++j)
{
//d += (int)((instanceI.value(j) - instance.value(j)) * (instanceI.value(j) - instance.value(j)));
if (instanceI.value(j) != instance.value(j))
{
if (instance.value(j) == 2 || instanceI.value(j) == 2)
{
d1++;
}
else
{
d1 += 4;
}
}
}
for (int j = n; j < 2 * n; ++j)
{
//d += (int)((instanceI.value(j) - instance.value(j)) * (instanceI.value(j) - instance.value(j)));
if (instanceI.value(j) != instance.value(j))
{
if (instance.value(j) == 2 || instanceI.value(j) == 2)
{
d2++;
}
else
{
d2 += 4;
}
}
}
int c = (int)instanceI.classValue();
//if (c == 0)
//{
// if (d1 < n / 4 && d1 < d2)
// {
// dist.Add(new Tuple<int, int>(d1, c));
// }
//}
//else if (c == 1)
//{
// if (d2 < n / 4 && d2 < d1)
// {
// dist.Add(new Tuple<int, int>(d2, c));
// }
//}
//else
//{
// throw new AssertException("");
//}
dist.Add(new Tuple <int, int>(d1 + d2, c));
}
if (dist.Count == 0)
{
return(2);
}
dist.Sort(new Comparison <Tuple <int, int> >((x, y) =>
{
return(x.Item1.CompareTo(y.Item1));
}));
int sum = 0, count = 0;
for (int i = 0; i < dist.Count; ++i)
{
if (dist[i].Item1 < n / 4 * 2 * 4)
{
if (dist[i].Item2 != 2 && dist[i].Item2 != 3)
{
sum += dist[i].Item2;
count++;
}
else
{
}
}
else
{
break;
}
}
if (count == 0)
{
return(2);
}
if (count < m_instances.numInstances() / 30)
{
return(2);
}
return((int)Math.Round((double)sum / count));
}
public override double classifyInstance(weka.core.Instance instance)
{
if (m_instances.numInstances() == 0)
{
return(2);
}
if (m_instances.numAttributes() != instance.numAttributes())
{
throw new AssertException("different attribute.");
}
int n = instance.numAttributes();
List <Tuple <int, int> > dist = new List <Tuple <int, int> >();
for (int i = 0; i < m_instances.numInstances(); ++i)
{
int d1 = 0, d2 = 0;
weka.core.Instance instanceI = m_instances.instance(i);
for (int j = 0; j < n; ++j)
{
//d += (int)((instanceI.value(j) - instance.value(j)) * (instanceI.value(j) - instance.value(j)));
if (instanceI.value(j) != instance.value(j))
{
d1++;
}
if (instance.value(j) != 0)
{
d2++;
}
}
int c = (int)instanceI.classValue();
dist.Add(new Tuple <int, int>(d1, c));
}
if (dist.Count == 0)
{
return(2);
}
dist.Sort(new Comparison <Tuple <int, int> >((x, y) =>
{
return(x.Item1.CompareTo(y.Item1));
}));
int sum = 0, count = 0;
for (int i = 0; i < dist.Count; ++i)
{
if (dist[i].Item1 < 4)
{
sum += dist[i].Item2;
count++;
}
else
{
break;
}
}
if (count == 0)
{
return(2);
}
if (count < m_instances.numInstances() / 70)
{
return(2);
}
return((int)Math.Round((double)sum / count));
}