gmnplib.h

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00001 /*-----------------------------------------------------------------------
00002  *
00003  * This program is free software; you can redistribute it and/or modify
00004  * it under the terms of the GNU General Public License as published by
00005  * the Free Software Foundation; either version 3 of the License, or
00006  * (at your option) any later version.
00007  *
00008  * Library of solvers for Generalized Nearest Point Problem (GNPP).
00009  *
00010  * Written (W) 1999-2008 Vojtech Franc, xfrancv@cmp.felk.cvut.cz
00011  * Copyright (C) 1999-2008 Center for Machine Perception, CTU FEL Prague 
00012  *
00013  -------------------------------------------------------------------- */
00014 
00015 #ifndef GMNPLIB_H__ 
00016 #define GMNPLIB_H__ 
00017 
00018 #include <math.h>
00019 #include <limits.h>
00020 
00021 #include "base/SGObject.h"
00022 #include "lib/io.h"
00023 #include "lib/common.h"
00024 #include "kernel/Kernel.h"
00025 
00026 namespace shogun
00027 {
00066 class CGMNPLib: public CSGObject
00067 {
00068     public:
00078         CGMNPLib(
00079             float64_t* vector_y, CKernel* kernel, int32_t num_data,
00080             int32_t num_virtual_data, int32_t num_classes, float64_t reg_const);
00081 
00082         virtual ~CGMNPLib();
00083 
00093         int8_t gmnp_imdm(float64_t *vector_c,
00094                 int32_t dim,
00095                 int32_t tmax,
00096                 float64_t tolabs,
00097                 float64_t tolrel,
00098                 float64_t th,
00099                 float64_t *alpha,
00100                 int32_t  *ptr_t,
00101                 float64_t **ptr_History,
00102                 int32_t verb);
00103 
00110         void get_indices2( int32_t *index, int32_t *c, int32_t i );
00111 
00112     protected:
00118         float64_t *get_kernel_col( int32_t a );
00119 
00126         float64_t* get_col( int32_t a, int32_t b );
00127 
00134         float64_t kernel_fce( int32_t a, int32_t b );
00135 
00137         inline virtual const char* get_name() const { return "GMNPLib"; }
00138 
00139     protected:
00141         float64_t* diag_H;
00143         float64_t** kernel_columns;
00145         float64_t* cache_index;
00147         int32_t first_kernel_inx;
00149         int64_t Cache_Size;
00151         int32_t m_num_data;
00153         float64_t m_reg_const;
00155         float64_t* m_vector_y;
00157         CKernel* m_kernel;
00158 
00160         int32_t first_virt_inx;
00162         float64_t *virt_columns[3];
00164         int32_t m_num_virt_data;
00166         int32_t m_num_classes;
00167 };
00168 }
00169 #endif //GMNPLIB_H__

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