GaussianShiftKernel.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) 2008 Gunnar Raetsch
00008  * Copyright (C) 2008-2009 Fraunhofer Institute FIRST and Max-Planck-Society
00009  */
00010 
00011 #ifndef _GAUSSIANSHIFTKERNEL_H___
00012 #define _GAUSSIANSHIFTKERNEL_H___
00013 
00014 #include "lib/common.h"
00015 #include "kernel/GaussianKernel.h"
00016 
00017 namespace shogun
00018 {
00036 class CGaussianShiftKernel: public CGaussianKernel
00037 {
00038     public:
00046         CGaussianShiftKernel(
00047             int32_t size, float64_t width, int32_t max_shift,
00048             int32_t shift_step);
00049 
00059         CGaussianShiftKernel(
00060             CSimpleFeatures<float64_t>* l, CSimpleFeatures<float64_t>* r,
00061             float64_t width, int32_t max_shift, int32_t shift_step,
00062             int32_t size=10);
00063 
00064         virtual ~CGaussianShiftKernel();
00065 
00070         virtual EKernelType get_kernel_type() { return K_GAUSSIANSHIFT; }
00071 
00076         virtual const char* get_name() const { return "GaussianShift"; }
00077 
00078     protected:
00087         virtual float64_t compute(int32_t idx_a, int32_t idx_b);
00088 
00089     protected:
00091         int32_t max_shift;
00093         int32_t shift_step;
00094 };
00095 }
00096 #endif /* _GAUSSIANSHIFTKERNEL_H__ */
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