public static Tuple <Matrix <double>, Vector <double> > Coalesce(List <Layer> toCoalesce)
{
Debug.Assert(toCoalesce.Count != 0);
int input_dim = toCoalesce.First().InputDimension;
int output_dim = toCoalesce.Last().OutputDimension;
VCInfo tmp = LPSTerm.GetVariableFactoryState();
LPSTerm.ResetVariableFactory(input_dim);
LPSTerm[] identity = LPSTerm.IdentityMatrix(input_dim);
LPSTerm[] v = identity;
for (int i = 0; i < toCoalesce.Count; i++)
{
Layer curr = toCoalesce[i];
var w = curr.EvaluateSymbolic(null, v);
v = w;
}
LPSTerm.RestoreVariableFactory(tmp);
return(new Tuple <Matrix <double>, Vector <double> >(LPSTerm.UnderlyingMatrix(v), LPSTerm.UnderlyingIntercept(v)));
}
public static void RestoreVariableFactory(VCInfo info)
{
vcinfo_ = info;
}
public static void ResetVariableFactory(int total_variables)
{
vcinfo_ = new VCInfo(total_variables);
vcinfo_.varcount_ = 0;
vcinfo_.total_varcount_ = total_variables;
}