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546 lines
18 KiB
C++
546 lines
18 KiB
C++
/*M///////////////////////////////////////////////////////////////////////////////////////
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//
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// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
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//
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// By downloading, copying, installing or using the software you agree to this license.
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// If you do not agree to this license, do not download, install,
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// copy or use the software.
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//
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//
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// Intel License Agreement
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// For Open Source Computer Vision Library
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//
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// Copyright (C) 2000, Intel Corporation, all rights reserved.
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// Third party copyrights are property of their respective owners.
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//
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// Redistribution and use in source and binary forms, with or without modification,
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// are permitted provided that the following conditions are met:
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//
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// * Redistribution's of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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//
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// * Redistribution's in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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//
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// * The name of Intel Corporation may not be used to endorse or promote products
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// derived from this software without specific prior written permission.
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//
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// This software is provided by the copyright holders and contributors "as is" and
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// any express or implied warranties, including, but not limited to, the implied
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// warranties of merchantability and fitness for a particular purpose are disclaimed.
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// In no event shall the Intel Corporation or contributors be liable for any direct,
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// indirect, incidental, special, exemplary, or consequential damages
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// (including, but not limited to, procurement of substitute goods or services;
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// loss of use, data, or profits; or business interruption) however caused
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// and on any theory of liability, whether in contract, strict liability,
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// or tort (including negligence or otherwise) arising in any way out of
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// the use of this software, even if advised of the possibility of such damage.
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//
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//M*/
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#include "test_precomp.hpp"
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using namespace cv;
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using namespace std;
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int str_to_svm_type(String& str)
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{
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if( !str.compare("C_SVC") )
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return SVM::C_SVC;
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if( !str.compare("NU_SVC") )
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return SVM::NU_SVC;
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if( !str.compare("ONE_CLASS") )
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return SVM::ONE_CLASS;
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if( !str.compare("EPS_SVR") )
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return SVM::EPS_SVR;
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if( !str.compare("NU_SVR") )
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return SVM::NU_SVR;
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CV_Error( CV_StsBadArg, "incorrect svm type string" );
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return -1;
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}
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int str_to_svm_kernel_type( String& str )
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{
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if( !str.compare("LINEAR") )
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return SVM::LINEAR;
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if( !str.compare("POLY") )
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return SVM::POLY;
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if( !str.compare("RBF") )
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return SVM::RBF;
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if( !str.compare("SIGMOID") )
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return SVM::SIGMOID;
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CV_Error( CV_StsBadArg, "incorrect svm type string" );
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return -1;
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}
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// 4. em
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// 5. ann
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int str_to_ann_train_method( String& str )
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{
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if( !str.compare("BACKPROP") )
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return ANN_MLP::BACKPROP;
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if( !str.compare("RPROP") )
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return ANN_MLP::RPROP;
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CV_Error( CV_StsBadArg, "incorrect ann train method string" );
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return -1;
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}
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void ann_check_data( Ptr<TrainData> _data )
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{
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CV_TRACE_FUNCTION();
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Mat values = _data->getSamples();
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Mat var_idx = _data->getVarIdx();
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int nvars = (int)var_idx.total();
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if( nvars != 0 && nvars != values.cols )
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CV_Error( CV_StsBadArg, "var_idx is not supported" );
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if( !_data->getMissing().empty() )
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CV_Error( CV_StsBadArg, "missing values are not supported" );
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}
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// unroll the categorical responses to binary vectors
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Mat ann_get_new_responses( Ptr<TrainData> _data, map<int, int>& cls_map )
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{
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CV_TRACE_FUNCTION();
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Mat train_sidx = _data->getTrainSampleIdx();
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int* train_sidx_ptr = train_sidx.ptr<int>();
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Mat responses = _data->getResponses();
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int cls_count = 0;
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// construct cls_map
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cls_map.clear();
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int nresponses = (int)responses.total();
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int si, n = !train_sidx.empty() ? (int)train_sidx.total() : nresponses;
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for( si = 0; si < n; si++ )
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{
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int sidx = train_sidx_ptr ? train_sidx_ptr[si] : si;
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int r = cvRound(responses.at<float>(sidx));
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CV_DbgAssert( fabs(responses.at<float>(sidx) - r) < FLT_EPSILON );
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map<int,int>::iterator it = cls_map.find(r);
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if( it == cls_map.end() )
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cls_map[r] = cls_count++;
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}
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Mat new_responses = Mat::zeros( nresponses, cls_count, CV_32F );
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for( si = 0; si < n; si++ )
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{
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int sidx = train_sidx_ptr ? train_sidx_ptr[si] : si;
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int r = cvRound(responses.at<float>(sidx));
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int cidx = cls_map[r];
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new_responses.at<float>(sidx, cidx) = 1.f;
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}
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return new_responses;
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}
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float ann_calc_error( Ptr<StatModel> ann, Ptr<TrainData> _data, map<int, int>& cls_map, int type, vector<float> *resp_labels )
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{
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CV_TRACE_FUNCTION();
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float err = 0;
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Mat samples = _data->getSamples();
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Mat responses = _data->getResponses();
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Mat sample_idx = (type == CV_TEST_ERROR) ? _data->getTestSampleIdx() : _data->getTrainSampleIdx();
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int* sidx = !sample_idx.empty() ? sample_idx.ptr<int>() : 0;
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ann_check_data( _data );
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int sample_count = (int)sample_idx.total();
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sample_count = (type == CV_TRAIN_ERROR && sample_count == 0) ? samples.rows : sample_count;
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float* pred_resp = 0;
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vector<float> innresp;
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if( sample_count > 0 )
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{
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if( resp_labels )
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{
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resp_labels->resize( sample_count );
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pred_resp = &((*resp_labels)[0]);
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}
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else
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{
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innresp.resize( sample_count );
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pred_resp = &(innresp[0]);
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}
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}
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int cls_count = (int)cls_map.size();
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Mat output( 1, cls_count, CV_32FC1 );
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for( int i = 0; i < sample_count; i++ )
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{
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int si = sidx ? sidx[i] : i;
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Mat sample = samples.row(si);
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ann->predict( sample, output );
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Point best_cls;
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minMaxLoc(output, 0, 0, 0, &best_cls, 0);
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int r = cvRound(responses.at<float>(si));
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CV_DbgAssert( fabs(responses.at<float>(si) - r) < FLT_EPSILON );
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r = cls_map[r];
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int d = best_cls.x == r ? 0 : 1;
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err += d;
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pred_resp[i] = (float)best_cls.x;
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}
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err = sample_count ? err / (float)sample_count * 100 : -FLT_MAX;
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return err;
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}
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// 6. dtree
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// 7. boost
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int str_to_boost_type( String& str )
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{
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if ( !str.compare("DISCRETE") )
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return Boost::DISCRETE;
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if ( !str.compare("REAL") )
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return Boost::REAL;
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if ( !str.compare("LOGIT") )
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return Boost::LOGIT;
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if ( !str.compare("GENTLE") )
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return Boost::GENTLE;
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CV_Error( CV_StsBadArg, "incorrect boost type string" );
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return -1;
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}
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// 8. rtrees
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// 9. ertrees
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int str_to_svmsgd_type( String& str )
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{
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if ( !str.compare("SGD") )
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return SVMSGD::SGD;
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if ( !str.compare("ASGD") )
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return SVMSGD::ASGD;
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CV_Error( CV_StsBadArg, "incorrect svmsgd type string" );
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return -1;
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}
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int str_to_margin_type( String& str )
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{
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if ( !str.compare("SOFT_MARGIN") )
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return SVMSGD::SOFT_MARGIN;
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if ( !str.compare("HARD_MARGIN") )
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return SVMSGD::HARD_MARGIN;
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CV_Error( CV_StsBadArg, "incorrect svmsgd margin type string" );
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return -1;
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}
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// ---------------------------------- MLBaseTest ---------------------------------------------------
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CV_MLBaseTest::CV_MLBaseTest(const char* _modelName)
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{
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int64 seeds[] = { CV_BIG_INT(0x00009fff4f9c8d52),
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CV_BIG_INT(0x0000a17166072c7c),
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CV_BIG_INT(0x0201b32115cd1f9a),
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CV_BIG_INT(0x0513cb37abcd1234),
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CV_BIG_INT(0x0001a2b3c4d5f678)
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};
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int seedCount = sizeof(seeds)/sizeof(seeds[0]);
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RNG& rng = theRNG();
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initSeed = rng.state;
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rng.state = seeds[rng(seedCount)];
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modelName = _modelName;
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}
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CV_MLBaseTest::~CV_MLBaseTest()
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{
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if( validationFS.isOpened() )
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validationFS.release();
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theRNG().state = initSeed;
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}
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int CV_MLBaseTest::read_params( CvFileStorage* __fs )
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{
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CV_TRACE_FUNCTION();
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FileStorage _fs(__fs, false);
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if( !_fs.isOpened() )
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test_case_count = -1;
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else
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{
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FileNode fn = _fs.getFirstTopLevelNode()["run_params"][modelName];
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test_case_count = (int)fn.size();
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if( test_case_count <= 0 )
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test_case_count = -1;
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if( test_case_count > 0 )
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{
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dataSetNames.resize( test_case_count );
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FileNodeIterator it = fn.begin();
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for( int i = 0; i < test_case_count; i++, ++it )
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{
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dataSetNames[i] = (string)*it;
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}
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}
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}
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return cvtest::TS::OK;;
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}
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void CV_MLBaseTest::run( int )
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{
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CV_TRACE_FUNCTION();
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string filename = ts->get_data_path();
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filename += get_validation_filename();
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validationFS.open( filename, FileStorage::READ );
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read_params( *validationFS );
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int code = cvtest::TS::OK;
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for (int i = 0; i < test_case_count; i++)
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{
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CV_TRACE_REGION("iteration");
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int temp_code = run_test_case( i );
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if (temp_code == cvtest::TS::OK)
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temp_code = validate_test_results( i );
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if (temp_code != cvtest::TS::OK)
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code = temp_code;
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}
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if ( test_case_count <= 0)
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{
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ts->printf( cvtest::TS::LOG, "validation file is not determined or not correct" );
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code = cvtest::TS::FAIL_INVALID_TEST_DATA;
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}
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ts->set_failed_test_info( code );
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}
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int CV_MLBaseTest::prepare_test_case( int test_case_idx )
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{
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CV_TRACE_FUNCTION();
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clear();
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string dataPath = ts->get_data_path();
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if ( dataPath.empty() )
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{
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ts->printf( cvtest::TS::LOG, "data path is empty" );
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return cvtest::TS::FAIL_INVALID_TEST_DATA;
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}
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string dataName = dataSetNames[test_case_idx],
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filename = dataPath + dataName + ".data";
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FileNode dataParamsNode = validationFS.getFirstTopLevelNode()["validation"][modelName][dataName]["data_params"];
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CV_DbgAssert( !dataParamsNode.empty() );
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CV_DbgAssert( !dataParamsNode["LS"].empty() );
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int trainSampleCount = (int)dataParamsNode["LS"];
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CV_DbgAssert( !dataParamsNode["resp_idx"].empty() );
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int respIdx = (int)dataParamsNode["resp_idx"];
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CV_DbgAssert( !dataParamsNode["types"].empty() );
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String varTypes = (String)dataParamsNode["types"];
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data = TrainData::loadFromCSV(filename, 0, respIdx, respIdx+1, varTypes);
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if( data.empty() )
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{
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ts->printf( cvtest::TS::LOG, "file %s can not be read\n", filename.c_str() );
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return cvtest::TS::FAIL_INVALID_TEST_DATA;
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}
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data->setTrainTestSplit(trainSampleCount);
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return cvtest::TS::OK;
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}
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string& CV_MLBaseTest::get_validation_filename()
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{
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return validationFN;
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}
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int CV_MLBaseTest::train( int testCaseIdx )
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{
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CV_TRACE_FUNCTION();
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bool is_trained = false;
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FileNode modelParamsNode =
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validationFS.getFirstTopLevelNode()["validation"][modelName][dataSetNames[testCaseIdx]]["model_params"];
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if( modelName == CV_NBAYES )
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model = NormalBayesClassifier::create();
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else if( modelName == CV_KNEAREST )
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{
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model = KNearest::create();
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}
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else if( modelName == CV_SVM )
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{
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String svm_type_str, kernel_type_str;
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modelParamsNode["svm_type"] >> svm_type_str;
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modelParamsNode["kernel_type"] >> kernel_type_str;
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Ptr<SVM> m = SVM::create();
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m->setType(str_to_svm_type( svm_type_str ));
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m->setKernel(str_to_svm_kernel_type( kernel_type_str ));
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m->setDegree(modelParamsNode["degree"]);
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m->setGamma(modelParamsNode["gamma"]);
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m->setCoef0(modelParamsNode["coef0"]);
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m->setC(modelParamsNode["C"]);
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m->setNu(modelParamsNode["nu"]);
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m->setP(modelParamsNode["p"]);
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model = m;
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}
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else if( modelName == CV_EM )
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{
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assert( 0 );
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}
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else if( modelName == CV_ANN )
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{
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String train_method_str;
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double param1, param2;
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modelParamsNode["train_method"] >> train_method_str;
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modelParamsNode["param1"] >> param1;
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modelParamsNode["param2"] >> param2;
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Mat new_responses = ann_get_new_responses( data, cls_map );
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// binarize the responses
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data = TrainData::create(data->getSamples(), data->getLayout(), new_responses,
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data->getVarIdx(), data->getTrainSampleIdx());
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int layer_sz[] = { data->getNAllVars(), 100, 100, (int)cls_map.size() };
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Mat layer_sizes( 1, (int)(sizeof(layer_sz)/sizeof(layer_sz[0])), CV_32S, layer_sz );
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Ptr<ANN_MLP> m = ANN_MLP::create();
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m->setLayerSizes(layer_sizes);
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m->setActivationFunction(ANN_MLP::SIGMOID_SYM, 0, 0);
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m->setTermCriteria(TermCriteria(TermCriteria::COUNT,300,0.01));
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m->setTrainMethod(str_to_ann_train_method(train_method_str), param1, param2);
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model = m;
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}
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else if( modelName == CV_DTREE )
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{
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int MAX_DEPTH, MIN_SAMPLE_COUNT, MAX_CATEGORIES, CV_FOLDS;
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float REG_ACCURACY = 0;
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bool USE_SURROGATE = false, IS_PRUNED;
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modelParamsNode["max_depth"] >> MAX_DEPTH;
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modelParamsNode["min_sample_count"] >> MIN_SAMPLE_COUNT;
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//modelParamsNode["use_surrogate"] >> USE_SURROGATE;
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modelParamsNode["max_categories"] >> MAX_CATEGORIES;
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modelParamsNode["cv_folds"] >> CV_FOLDS;
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modelParamsNode["is_pruned"] >> IS_PRUNED;
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Ptr<DTrees> m = DTrees::create();
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m->setMaxDepth(MAX_DEPTH);
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m->setMinSampleCount(MIN_SAMPLE_COUNT);
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m->setRegressionAccuracy(REG_ACCURACY);
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m->setUseSurrogates(USE_SURROGATE);
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m->setMaxCategories(MAX_CATEGORIES);
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m->setCVFolds(CV_FOLDS);
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m->setUse1SERule(false);
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m->setTruncatePrunedTree(IS_PRUNED);
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m->setPriors(Mat());
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model = m;
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}
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else if( modelName == CV_BOOST )
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{
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int BOOST_TYPE, WEAK_COUNT, MAX_DEPTH;
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float WEIGHT_TRIM_RATE;
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bool USE_SURROGATE = false;
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String typeStr;
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modelParamsNode["type"] >> typeStr;
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BOOST_TYPE = str_to_boost_type( typeStr );
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modelParamsNode["weak_count"] >> WEAK_COUNT;
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modelParamsNode["weight_trim_rate"] >> WEIGHT_TRIM_RATE;
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modelParamsNode["max_depth"] >> MAX_DEPTH;
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//modelParamsNode["use_surrogate"] >> USE_SURROGATE;
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Ptr<Boost> m = Boost::create();
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m->setBoostType(BOOST_TYPE);
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m->setWeakCount(WEAK_COUNT);
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m->setWeightTrimRate(WEIGHT_TRIM_RATE);
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m->setMaxDepth(MAX_DEPTH);
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m->setUseSurrogates(USE_SURROGATE);
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m->setPriors(Mat());
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model = m;
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}
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else if( modelName == CV_RTREES )
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{
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int MAX_DEPTH, MIN_SAMPLE_COUNT, MAX_CATEGORIES, CV_FOLDS, NACTIVE_VARS, MAX_TREES_NUM;
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float REG_ACCURACY = 0, OOB_EPS = 0.0;
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bool USE_SURROGATE = false, IS_PRUNED;
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modelParamsNode["max_depth"] >> MAX_DEPTH;
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modelParamsNode["min_sample_count"] >> MIN_SAMPLE_COUNT;
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//modelParamsNode["use_surrogate"] >> USE_SURROGATE;
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modelParamsNode["max_categories"] >> MAX_CATEGORIES;
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modelParamsNode["cv_folds"] >> CV_FOLDS;
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modelParamsNode["is_pruned"] >> IS_PRUNED;
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modelParamsNode["nactive_vars"] >> NACTIVE_VARS;
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modelParamsNode["max_trees_num"] >> MAX_TREES_NUM;
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Ptr<RTrees> m = RTrees::create();
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m->setMaxDepth(MAX_DEPTH);
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m->setMinSampleCount(MIN_SAMPLE_COUNT);
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m->setRegressionAccuracy(REG_ACCURACY);
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m->setUseSurrogates(USE_SURROGATE);
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m->setMaxCategories(MAX_CATEGORIES);
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m->setPriors(Mat());
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m->setCalculateVarImportance(true);
|
|
m->setActiveVarCount(NACTIVE_VARS);
|
|
m->setTermCriteria(TermCriteria(TermCriteria::COUNT, MAX_TREES_NUM, OOB_EPS));
|
|
model = m;
|
|
}
|
|
|
|
else if( modelName == CV_SVMSGD )
|
|
{
|
|
String svmsgdTypeStr;
|
|
modelParamsNode["svmsgdType"] >> svmsgdTypeStr;
|
|
|
|
Ptr<SVMSGD> m = SVMSGD::create();
|
|
int svmsgdType = str_to_svmsgd_type( svmsgdTypeStr );
|
|
m->setSvmsgdType(svmsgdType);
|
|
|
|
String marginTypeStr;
|
|
modelParamsNode["marginType"] >> marginTypeStr;
|
|
int marginType = str_to_margin_type( marginTypeStr );
|
|
m->setMarginType(marginType);
|
|
|
|
m->setMarginRegularization(modelParamsNode["marginRegularization"]);
|
|
m->setInitialStepSize(modelParamsNode["initialStepSize"]);
|
|
m->setStepDecreasingPower(modelParamsNode["stepDecreasingPower"]);
|
|
m->setTermCriteria(TermCriteria(TermCriteria::COUNT + TermCriteria::EPS, 10000, 0.00001));
|
|
model = m;
|
|
}
|
|
|
|
if( !model.empty() )
|
|
is_trained = model->train(data, 0);
|
|
|
|
if( !is_trained )
|
|
{
|
|
ts->printf( cvtest::TS::LOG, "in test case %d model training was failed", testCaseIdx );
|
|
return cvtest::TS::FAIL_INVALID_OUTPUT;
|
|
}
|
|
return cvtest::TS::OK;
|
|
}
|
|
|
|
float CV_MLBaseTest::get_test_error( int /*testCaseIdx*/, vector<float> *resp )
|
|
{
|
|
CV_TRACE_FUNCTION();
|
|
int type = CV_TEST_ERROR;
|
|
float err = 0;
|
|
Mat _resp;
|
|
if( modelName == CV_EM )
|
|
assert( 0 );
|
|
else if( modelName == CV_ANN )
|
|
err = ann_calc_error( model, data, cls_map, type, resp );
|
|
else if( modelName == CV_DTREE || modelName == CV_BOOST || modelName == CV_RTREES ||
|
|
modelName == CV_SVM || modelName == CV_NBAYES || modelName == CV_KNEAREST || modelName == CV_SVMSGD )
|
|
err = model->calcError( data, true, _resp );
|
|
if( !_resp.empty() && resp )
|
|
_resp.convertTo(*resp, CV_32F);
|
|
return err;
|
|
}
|
|
|
|
void CV_MLBaseTest::save( const char* filename )
|
|
{
|
|
CV_TRACE_FUNCTION();
|
|
model->save( filename );
|
|
}
|
|
|
|
void CV_MLBaseTest::load( const char* filename )
|
|
{
|
|
CV_TRACE_FUNCTION();
|
|
if( modelName == CV_NBAYES )
|
|
model = Algorithm::load<NormalBayesClassifier>( filename );
|
|
else if( modelName == CV_KNEAREST )
|
|
model = Algorithm::load<KNearest>( filename );
|
|
else if( modelName == CV_SVM )
|
|
model = Algorithm::load<SVM>( filename );
|
|
else if( modelName == CV_ANN )
|
|
model = Algorithm::load<ANN_MLP>( filename );
|
|
else if( modelName == CV_DTREE )
|
|
model = Algorithm::load<DTrees>( filename );
|
|
else if( modelName == CV_BOOST )
|
|
model = Algorithm::load<Boost>( filename );
|
|
else if( modelName == CV_RTREES )
|
|
model = Algorithm::load<RTrees>( filename );
|
|
else if( modelName == CV_SVMSGD )
|
|
model = Algorithm::load<SVMSGD>( filename );
|
|
else
|
|
CV_Error( CV_StsNotImplemented, "invalid stat model name");
|
|
}
|
|
|
|
/* End of file. */
|