Histogram.h

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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) 1999-2008 Soeren Sonnenburg
00008  * Copyright (C) 1999-2008 Fraunhofer Institute FIRST and Max-Planck-Society
00009  */
00010 
00011 #ifndef _HISTOGRAM_H___
00012 #define _HISTOGRAM_H___
00013 
00014 #include "features/StringFeatures.h"
00015 #include "distributions/Distribution.h"
00016 
00018 class CHistogram : public CDistribution
00019 {
00020     public:
00022         CHistogram();
00023 
00028         CHistogram(CStringFeatures<WORD>* f);
00029         ~CHistogram();
00030 
00035         virtual bool train();
00036 
00041         virtual inline INT get_num_model_parameters() { return (1<<16); }
00042 
00048         virtual DREAL get_log_model_parameter(INT num_param);
00049 
00056         virtual DREAL get_log_derivative(INT num_param, INT num_example);
00057 
00063         virtual DREAL get_log_likelihood_example(INT num_example);
00064 
00070         virtual bool set_histogram(DREAL* src, INT num);
00071 
00078         virtual void get_histogram(DREAL** dst, INT* num);
00079 
00080     protected:
00082         DREAL* hist;
00083 };
00084 #endif

SHOGUN Machine Learning Toolbox - Documentation