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) 1999-2008 Soeren Sonnenburg 00008 * Copyright (C) 1999-2008 Fraunhofer Institute FIRST and Max-Planck-Society 00009 */ 00010 00011 #ifndef _DIAGKERNEL_H___ 00012 #define _DIAGKERNEL_H___ 00013 00014 #include "lib/common.h" 00015 #include "kernel/Kernel.h" 00016 00023 class CDiagKernel: public CKernel 00024 { 00025 public: 00031 CDiagKernel(INT size, DREAL diag=1.0); 00032 00039 CDiagKernel(CFeatures* l, CFeatures* r, DREAL diag=1.0); 00040 00041 virtual ~CDiagKernel(); 00042 00048 virtual bool load_init(FILE* src); 00049 00055 virtual bool save_init(FILE* dest); 00056 00061 inline virtual EFeatureType get_feature_type() 00062 { 00063 return F_ANY; 00064 } 00065 00070 inline virtual EFeatureClass get_feature_class() 00071 { 00072 return C_ANY; 00073 } 00074 00079 virtual EKernelType get_kernel_type() { return K_DIAG; } 00080 00085 virtual const CHAR* get_name() { return "Diagonal"; } 00086 00087 protected: 00096 inline virtual DREAL compute(INT idx_a, INT idx_b) 00097 { 00098 if (idx_a==idx_b) 00099 return diag; 00100 else 00101 return 0; 00102 } 00103 00104 protected: 00106 double diag; 00107 }; 00108 00109 #endif /* _DIAGKERNEL_H__ */