WaveKernel.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 Sergey Lisitsyn
00008  * Copyright (C) 2011 Berlin Institute of Technology and Max-Planck-Society
00009  */
00010 
00011 #include <shogun/lib/config.h>
00012 
00013 #ifndef WAVEKERNEL_H_
00014 #define WAVEKERNEL_H_
00015 
00016 #include <shogun/lib/common.h>
00017 #include <shogun/kernel/Kernel.h>
00018 #include <shogun/distance/Distance.h>
00019 
00020 namespace shogun
00021 {
00022 
00023 class CDistance;
00024 
00035 class CWaveKernel: public CKernel
00036 {
00037 public:
00039     CWaveKernel();
00040 
00046     CWaveKernel(int32_t cache, float64_t theta, CDistance* dist);
00047 
00054     CWaveKernel(CFeatures *l, CFeatures *r, float64_t theta, CDistance* dist);
00055 
00061     virtual bool init(CFeatures* l, CFeatures* r);
00062 
00066     virtual EKernelType get_kernel_type() { return K_WAVE; }
00067 
00071     virtual EFeatureType get_feature_type() { return m_distance->get_feature_type(); }
00072 
00076     virtual EFeatureClass get_feature_class() { return m_distance->get_feature_class(); }
00077 
00081     virtual const char* get_name() const { return "WaveKernel"; }
00082 
00083     virtual ~CWaveKernel();
00084 
00085 protected:
00093     virtual float64_t compute(int32_t idx_a, int32_t idx_b);
00094 
00095 private:
00096     void init();
00097 
00098 protected:
00099 
00101     CDistance* m_distance;
00102 
00104     float64_t m_theta;
00105 };
00106 }
00107 
00108 #endif /* WAVEKERNEL_H_ */
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