public void Visit(Compiled.Gp elem)
{
GeneralMatrix cur = new GeneralMatrix(1, elem.Terms.Length);
for (int i = 0; i < elem.Terms.Length; ++i)
{
cur.SetElement(0, i, ValueOf(elem.Terms[i]));
}
elem.Value = elem.Gpr.Evaluate(cur).GetElement(0, 0);
for (int i = 0; i < elem.Inputs.Length; ++i)
{
if (i < elem.dc)
{
//elem.Inputs[i].Weight = elem.Gpr.PartialDerivative(cur, i);
cur.SetElement(0, i, cur.GetElement(0, i) + 0.1);
elem.Inputs[i].Weight = (elem.Gpr.Evaluate(cur).GetElement(0, 0) - elem.Value) / 0.1;
cur.SetElement(0, i, cur.GetElement(0, i) - 0.1);
}
else
{
elem.Inputs[i].Weight = 0;
}
}
//Here Starts a dirty Hack
/*double sum=0;
* for(int n=0; n<elem.Inputs.Length; n++) {
* sum += elem.Inputs[n].Weight;
* }
* if(sum < 0.00001) {
* double val = elem.Value;
*
* double minDist = Double.MaxValue;
* int iMin=-1;
* double dist = 0, tmp;
* for(int n=0; n<elem.X.RowDimension; n++) {
* if(elem.Gpr.Y.GetElement(0, n) > val) {
* dist = 0;
* for(int m=0; m<elem.X.ColumnDimension; m++) {
* tmp = elem.X.GetElement(n, m) - cur.GetElement(0, m);
* dist += tmp*tmp;
* }
* if(dist < minDist) {
* minDist = dist;
* iMin = n;
* }
* }
* }
* if(iMin>=0) {
* for(int m=0; m<elem.X.ColumnDimension; m++) {
* elem.Inputs[m].Weight = elem.X.GetElement(m, iMin) - cur.GetElement(0, m);
* }
* }
* }*/
}
public void Visit(Compiled.Gp elem)
{
GeneralMatrix cur = new GeneralMatrix(1, elem.Terms.Length);
for (int i = 0; i < elem.Terms.Length; ++i)
{
cur.SetElement(0, i, ValueOf(elem.Terms[i]));
}
LocalDerivative = elem.Gpr.PartialDerivative(cur, ArgumentIndex);
}
public void Visit(Compiled.Gp elem)
{
GeneralMatrix cur = new GeneralMatrix(1, elem.Terms.Length);
for (int i = 0; i < elem.Terms.Length; ++i)
{
cur.SetElement(0, i, ValueOf(elem.Terms[i]));
}
elem.Value = elem.Gpr.Evaluate(cur).GetElement(0, 0);
}
public int Visit(Gp gp)
{
return(Compile(gp, () =>
{
int[] indices = new int[gp.Args.Length];
Compiled.InputEdge[] inputs = new Compiled.InputEdge[indices.Length];
for (int i = 0; i < indices.Length; i++)
{
indices[i] = gp.Args[i].Accept(this);
inputs[i] = new Compiled.InputEdge {
Index = indices[i]
};
}
var element = new Compiled.Gp {
Terms = indices,
Inputs = inputs,
Gpr = gp.Gpr,
dc = gp.DivCount,
};
return element;
}));
}
