SplittingStrategy.h

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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) 2011 Heiko Strathmann
00008  * Copyright (C) 2011 Berlin Institute of Technology and Max-Planck-Society
00009  */
00010 
00011 #ifndef __SPLITTINGSTRATEGY_H_
00012 #define __SPLITTINGSTRATEGY_H_
00013 
00014 #include <shogun/base/SGObject.h>
00015 #include <shogun/lib/DynamicArray.h>
00016 #include <shogun/lib/DynamicObjectArray.h>
00017 
00018 namespace shogun
00019 {
00020 
00021 class CLabels;
00022 
00040 class CSplittingStrategy: public CSGObject
00041 {
00042 public:
00044     CSplittingStrategy();
00045 
00051     CSplittingStrategy(CLabels* labels, index_t num_subsets);
00052 
00054     virtual ~CSplittingStrategy();
00055 
00065     SGVector<index_t> generate_subset_indices(index_t subset_idx);
00066 
00076     SGVector<index_t> generate_subset_inverse(index_t subset_idx);
00077 
00079     index_t get_num_subsets() const;
00080 
00086     virtual void build_subsets()=0;
00087 
00088 protected:
00091     void reset_subsets();
00092 
00093 private:
00094     void init();
00095 
00096 
00097 protected:
00098 
00100     CLabels* m_labels;
00101 
00103     CDynamicObjectArray* m_subset_indices;
00104 
00106     index_t m_num_subsets;
00107 
00110     bool m_is_filled;
00111 };
00112 }
00113 
00114 #endif /* __SPLITTINGSTRATEGY_H_ */
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