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) 1999-2009 Soeren Sonnenburg 00008 * Copyright (C) 1999-2009 Fraunhofer Institute FIRST and Max-Planck-Society 00009 */ 00010 00011 #ifndef _LINEARWORDKERNEL_H___ 00012 #define _LINEARWORDKERNEL_H___ 00013 00014 #include "lib/common.h" 00015 #include "kernel/SimpleKernel.h" 00016 #include "features/SimpleFeatures.h" 00017 00027 class CLinearWordKernel: public CSimpleKernel<uint16_t> 00028 { 00029 public: 00032 CLinearWordKernel(); 00033 00039 CLinearWordKernel(CSimpleFeatures<uint16_t>* l, CSimpleFeatures<uint16_t>* r); 00040 00041 virtual ~CLinearWordKernel(); 00042 00049 virtual bool init(CFeatures* l, CFeatures* r); 00050 00052 virtual void cleanup(); 00053 00059 virtual bool load_init(FILE* src); 00060 00066 virtual bool save_init(FILE* dest); 00067 00072 virtual EKernelType get_kernel_type() { return K_LINEAR; } 00073 00078 virtual const char* get_name() const { return "Linear"; } 00079 00087 virtual bool init_optimization( 00088 int32_t num_suppvec, int32_t* sv_idx, float64_t* alphas); 00089 00094 virtual bool delete_optimization(); 00095 00101 virtual float64_t compute_optimized(int32_t idx); 00102 00104 virtual void clear_normal(); 00105 00111 virtual void add_to_normal(int32_t idx, float64_t weight); 00112 00113 protected: 00122 virtual float64_t compute(int32_t idx_a, int32_t idx_b); 00123 00124 protected: 00126 float64_t* normal; 00127 }; 00128 00129 #endif /* _LINEARWORDKERNEL_H__ */