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SHOGUN v0.9.3
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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 * Implementation of SVM-Ocas solver. 00008 * 00009 * Linear binary SVM solver without bias term. 00010 * 00011 * Modifications: 00012 * 10-oct-2007, VF, created. 00013 * 14-nov-2007, VF, timing statistics added 00014 * ----------------------------------------------------------------------*/ 00015 00016 #include "lib/common.h" 00017 00018 #ifndef DOXYGEN_SHOULD_SKIP_THIS 00019 namespace shogun 00020 { 00022 typedef struct { 00024 uint32_t nIter; 00026 uint32_t nCutPlanes; 00028 uint32_t nNZAlpha; 00030 float64_t trn_err; 00032 float64_t Q_P; 00034 float64_t Q_D; 00036 float64_t output_time; 00038 float64_t sort_time; 00040 float64_t add_time; 00042 float64_t w_time; 00044 float64_t solver_time; 00046 float64_t ocas_time; 00047 00052 int8_t exitflag; 00053 } ocas_return_value_T; 00054 00055 ocas_return_value_T svm_ocas_solver( 00056 float64_t C, /* regularizarion constant */ 00057 uint32_t nData, /* number of exmaples */ 00058 float64_t TolRel, /* halts if 1-Q_P/Q_D <= TolRel */ 00059 float64_t TolAbs, /* halts if Q_P-Q_D <= TolRel */ 00060 float64_t QPBound, /* halts if QP <= QPBound */ 00061 uint32_t BufSize, /* maximal number of buffered cutting planes */ 00062 uint8_t Method, /* 0..standard CP (SVM-Perf,BMRM), 1..OCAS */ 00063 void (*compute_W)(float64_t*, float64_t*, float64_t*, uint32_t, void*), 00064 float64_t (*update_W)(float64_t, void*), 00065 void (*add_new_cut)(float64_t*, uint32_t*, uint32_t, uint32_t, void*), 00066 void (*compute_output)( float64_t*, void* ), 00067 void (*sort)(float64_t*, uint32_t*, uint32_t), 00068 void* user_data); 00069 } 00070 #endif // DOXYGEN_SHOULD_SKIP_THIS
