SHOGUN  v3.2.0
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Defines
GradientEvaluation.h
Go to the documentation of this file.
00001 /*
00002  * This program is free software; you can redistribute it and/or modify
00003  * it under the terms of the GNU General Public License as published by
00004  * the Free Software Foundation; either version 3 of the License, or
00005  * (at your option) any later version.
00006  *
00007  * Written (W) 2013 Roman Votyakov
00008  * Copyright (C) 2012 Jacob Walker
00009  */
00010 
00011 #ifndef CGRADIENTEVALUATION_H_
00012 #define CGRADIENTEVALUATION_H_
00013 
00014 #include <shogun/evaluation/MachineEvaluation.h>
00015 #include <shogun/evaluation/DifferentiableFunction.h>
00016 #include <shogun/evaluation/EvaluationResult.h>
00017 
00018 namespace shogun
00019 {
00020 
00024 class CGradientEvaluation: public CMachineEvaluation
00025 {
00026 public:
00028     CGradientEvaluation();
00029 
00038     CGradientEvaluation(CMachine* machine, CFeatures* features, CLabels* labels,
00039             CEvaluation* evaluation_criterion, bool autolock=true);
00040 
00041     virtual ~CGradientEvaluation();
00042 
00047     virtual const char* get_name() const { return "GradientEvaluation"; }
00048 
00053     virtual CEvaluationResult* evaluate();
00054 
00059     inline void set_function(CDifferentiableFunction* diff)
00060     {
00061         SG_REF(diff);
00062         SG_UNREF(m_diff);
00063         m_diff=diff;
00064     }
00065 
00070     inline CDifferentiableFunction* get_function()
00071     {
00072         SG_REF(m_diff);
00073         return m_diff;
00074     }
00075 
00076 private:
00078     void init();
00079 
00081     void update_parameter_dictionary();
00082 
00083 private:
00085     CDifferentiableFunction* m_diff;
00086 
00088     CMap<TParameter*, CSGObject*>*  m_parameter_dictionary;
00089 };
00090 }
00091 #endif /* CGRADIENTEVALUATION_H_ */
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Defines

SHOGUN Machine Learning Toolbox - Documentation