Definition at line 2264 of file svm.cpp.
References EPSILON_SVR, svm_model::label, Malloc, svm_model::nr_class, NU_SVR, ONE_CLASS, svm_model::param, svm_predict_values(), and svm_parameter::svm_type.
Referenced by Impala::Core::Trec::TrecSVM::Predict(), Impala::Core::Training::Svm::PredictSingle(), svm_cross_validation(), and svm_predict_probability().
02265 { 02266 if(model->param.svm_type == ONE_CLASS || 02267 model->param.svm_type == EPSILON_SVR || 02268 model->param.svm_type == NU_SVR) 02269 { 02270 double res; 02271 svm_predict_values(model, x, &res); 02272 02273 if(model->param.svm_type == ONE_CLASS) 02274 return (res>0)?1:-1; 02275 else 02276 return res; 02277 } 02278 else 02279 { 02280 int i; 02281 int nr_class = model->nr_class; 02282 double *dec_values = Malloc(double, nr_class*(nr_class-1)/2); 02283 svm_predict_values(model, x, dec_values); 02284 02285 int *vote = Malloc(int,nr_class); 02286 for(i=0;i<nr_class;i++) 02287 vote[i] = 0; 02288 int pos=0; 02289 for(i=0;i<nr_class;i++) 02290 for(int j=i+1;j<nr_class;j++) 02291 { 02292 if(dec_values[pos++] > 0) 02293 ++vote[i]; 02294 else 02295 ++vote[j]; 02296 } 02297 02298 int vote_max_idx = 0; 02299 for(i=1;i<nr_class;i++) 02300 if(vote[i] > vote[vote_max_idx]) 02301 vote_max_idx = i; 02302 free(vote); 02303 free(dec_values); 02304 return model->label[vote_max_idx]; 02305 } 02306 }
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