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 #ifndef ECOCEDDECODER_H__ 00012 #define ECOCEDDECODER_H__ 00013 00014 #include <shogun/multiclass/ecoc/ECOCSimpleDecoder.h> 00015 #include <shogun/mathematics/Math.h> 00016 00017 namespace shogun 00018 { 00019 00026 class CECOCEDDecoder: public CECOCSimpleDecoder 00027 { 00028 public: 00030 CECOCEDDecoder() {} 00031 00033 virtual ~CECOCEDDecoder() {} 00034 00036 virtual const char* get_name() const { return "ECOCEDDecoder"; } 00037 00038 00039 protected: 00041 virtual bool binary_decoding() 00042 { 00043 return false; 00044 } 00045 00047 virtual float64_t compute_distance(SGVector<float64_t> outputs, const int32_t *code) 00048 { 00049 float64_t dist = 0; 00050 for (int32_t i=0; i < outputs.vlen; ++i) 00051 dist += (outputs[i]-code[i])*(outputs[i]-code[i]); 00052 return CMath::sqrt(dist); 00053 } 00054 }; 00055 00056 } /* shogun */ 00057 00058 #endif /* end of include guard: ECOCEDDECODER_H__ */ 00059
