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 _POLYMATCHWORDKERNEL_H___ 00012 #define _POLYMATCHWORDKERNEL_H___ 00013 00014 #include "lib/common.h" 00015 #include "kernel/SimpleKernel.h" 00016 #include "features/WordFeatures.h" 00017 00019 class CPolyMatchWordKernel: public CSimpleKernel<WORD> 00020 { 00021 public: 00029 CPolyMatchWordKernel(INT size, INT degree, bool inhomogene, 00030 bool use_normalization=true); 00031 00040 CPolyMatchWordKernel(CWordFeatures* l, CWordFeatures* r, 00041 INT degree, bool inhomogene, bool use_normalization=true); 00042 00043 virtual ~CPolyMatchWordKernel(); 00044 00051 virtual bool init(CFeatures* l, CFeatures* r); 00052 00054 virtual void cleanup(); 00055 00061 virtual bool load_init(FILE* src); 00062 00068 virtual bool save_init(FILE* dest); 00069 00074 virtual EKernelType get_kernel_type() { return K_POLYMATCH; } 00075 00080 virtual const CHAR* get_name() { return "PolyMatchWord"; } 00081 00082 protected: 00091 virtual DREAL compute(INT idx_a, INT idx_b); 00092 00093 protected: 00095 INT degree; 00097 bool inhomogene; 00099 bool use_normalization; 00100 00102 DREAL *sqrtdiag_lhs; 00104 DREAL *sqrtdiag_rhs; 00106 bool initialized; 00107 }; 00108 00109 #endif /* _POLYMATCHWORDKERNEL_H__ */