| 
    PLearn 0.1 
   | 
 
#include <MulticlassErrorCostFunction.h>


Public Member Functions | |
| MulticlassErrorCostFunction () | |
| virtual string | classname () const | 
| virtual OptionList & | getOptionList () const | 
| virtual OptionMap & | getOptionMap () const | 
| virtual RemoteMethodMap & | getRemoteMethodMap () const | 
| virtual  MulticlassErrorCostFunction *  | deepCopy (CopiesMap &copies) const | 
| virtual string | info () const | 
| Returns a bit more informative string about object (default returns classname())   | |
| virtual real | evaluate (const Vec &output, const Vec &target) const | 
| ** Subclasses must override this method **   | |
Static Public Member Functions | |
| static string | _classname_ () | 
| static OptionList & | _getOptionList_ () | 
| static RemoteMethodMap & | _getRemoteMethodMap_ () | 
| static Object * | _new_instance_for_typemap_ () | 
| static bool | _isa_ (const Object *o) | 
| static void | _static_initialize_ () | 
| static const PPath & | declaringFile () | 
Static Public Attributes | |
| static StaticInitializer | _static_initializer_ | 
Private Types | |
| typedef Kernel | inherited | 
cost = sum_i class_error_i
Definition at line 57 of file MulticlassErrorCostFunction.h.
typedef Kernel PLearn::MulticlassErrorCostFunction::inherited [private] | 
        
Reimplemented from PLearn::Kernel.
Definition at line 59 of file MulticlassErrorCostFunction.h.
| PLearn::MulticlassErrorCostFunction::MulticlassErrorCostFunction | ( | ) |  [inline] | 
        
Definition at line 62 of file MulticlassErrorCostFunction.h.
{}
| string PLearn::MulticlassErrorCostFunction::_classname_ | ( | ) |  [static] | 
        
Reimplemented from PLearn::Kernel.
Definition at line 51 of file MulticlassErrorCostFunction.cc.
| OptionList & PLearn::MulticlassErrorCostFunction::_getOptionList_ | ( | ) |  [static] | 
        
Reimplemented from PLearn::Kernel.
Definition at line 51 of file MulticlassErrorCostFunction.cc.
| RemoteMethodMap & PLearn::MulticlassErrorCostFunction::_getRemoteMethodMap_ | ( | ) |  [static] | 
        
Reimplemented from PLearn::Kernel.
Definition at line 51 of file MulticlassErrorCostFunction.cc.
Reimplemented from PLearn::Kernel.
Definition at line 51 of file MulticlassErrorCostFunction.cc.
| Object * PLearn::MulticlassErrorCostFunction::_new_instance_for_typemap_ | ( | ) |  [static] | 
        
Reimplemented from PLearn::Object.
Definition at line 51 of file MulticlassErrorCostFunction.cc.
| StaticInitializer MulticlassErrorCostFunction::_static_initializer_ & PLearn::MulticlassErrorCostFunction::_static_initialize_ | ( | ) |  [static] | 
        
Reimplemented from PLearn::Kernel.
Definition at line 51 of file MulticlassErrorCostFunction.cc.
| string PLearn::MulticlassErrorCostFunction::classname | ( | ) |  const [virtual] | 
        
Reimplemented from PLearn::Object.
Definition at line 51 of file MulticlassErrorCostFunction.cc.
| static const PPath& PLearn::MulticlassErrorCostFunction::declaringFile | ( | ) |  [inline, static] | 
        
Reimplemented from PLearn::Kernel.
Definition at line 64 of file MulticlassErrorCostFunction.h.
{ return "multiclass_error"; }
| MulticlassErrorCostFunction * PLearn::MulticlassErrorCostFunction::deepCopy | ( | CopiesMap & | copies | ) |  const [virtual] | 
        
Reimplemented from PLearn::Kernel.
Definition at line 51 of file MulticlassErrorCostFunction.cc.
| real PLearn::MulticlassErrorCostFunction::evaluate | ( | const Vec & | x1, | 
| const Vec & | x2 | ||
| ) |  const [virtual] | 
        
** Subclasses must override this method **
returns K(x1,x2)
Implements PLearn::Kernel.
Definition at line 53 of file MulticlassErrorCostFunction.cc.
References i, PLearn::TVec< T >::length(), and PLERROR.
{
    if (output.length() != target.length())
        PLERROR("In MulticlassErrorCostFunction::evaluate: Output vec and target vec must have the same length (%d!=%d", output.length(),target.length());
    real cost = 0.0;
    for (int i=0; i<output.length(); i++)
    {
        real output_i = output[i];
        int target_i = (int)target[i];
        cost += (target_i==1) ? output_i<0.5 : output_i>0.5;
    }
    return cost;
}

| OptionList & PLearn::MulticlassErrorCostFunction::getOptionList | ( | ) |  const [virtual] | 
        
Reimplemented from PLearn::Object.
Definition at line 51 of file MulticlassErrorCostFunction.cc.
| OptionMap & PLearn::MulticlassErrorCostFunction::getOptionMap | ( | ) |  const [virtual] | 
        
Reimplemented from PLearn::Object.
Definition at line 51 of file MulticlassErrorCostFunction.cc.
| RemoteMethodMap & PLearn::MulticlassErrorCostFunction::getRemoteMethodMap | ( | ) |  const [virtual] | 
        
Reimplemented from PLearn::Object.
Definition at line 51 of file MulticlassErrorCostFunction.cc.
| virtual string PLearn::MulticlassErrorCostFunction::info | ( | ) |  const [inline, virtual] | 
        
Returns a bit more informative string about object (default returns classname())
Reimplemented from PLearn::Object.
Definition at line 66 of file MulticlassErrorCostFunction.h.
    { return "multiclass_error"; }
Reimplemented from PLearn::Kernel.
Definition at line 64 of file MulticlassErrorCostFunction.h.
 1.7.4