MulticlassStrategy.cpp

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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) 2012 Chiyuan Zhang
00008  * Copyright (C) 2012 Chiyuan Zhang
00009  */
00010 
00011 #include <shogun/multiclass/MulticlassStrategy.h>
00012 #include <shogun/mathematics/Math.h>
00013 
00014 using namespace shogun;
00015 
00016 
00017 CMulticlassStrategy::CMulticlassStrategy()
00018     : m_rejection_strategy(NULL), m_train_labels(NULL), m_orig_labels(NULL), m_train_iter(0)
00019 {
00020     SG_ADD((CSGObject**)&m_rejection_strategy, "rejection_strategy", "Strategy of rejection", MS_NOT_AVAILABLE);
00021     SG_ADD(&m_num_classes, "num_classes", "Number of classes", MS_NOT_AVAILABLE);
00022 }
00023 
00024 void CMulticlassStrategy::train_start(CMulticlassLabels *orig_labels, CBinaryLabels *train_labels)
00025 {
00026     if (m_train_labels != NULL)
00027         SG_ERROR("Stop the previous training task before starting a new one!");
00028     SG_REF(train_labels);
00029     m_train_labels=train_labels;
00030     SG_REF(orig_labels);
00031     m_orig_labels=orig_labels;
00032     m_train_iter=0;
00033 }
00034 
00035 SGVector<int32_t> CMulticlassStrategy::train_prepare_next()
00036 {
00037     m_train_iter++;
00038     return SGVector<int32_t>();
00039 }
00040 
00041 void CMulticlassStrategy::train_stop()
00042 {
00043     SG_UNREF(m_train_labels);
00044     SG_UNREF(m_orig_labels);
00045     m_train_labels = NULL;
00046     m_orig_labels = NULL;
00047 }
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