00001 /* -*- mode: c++ -*- 00002 */ 00003 /* 00004 00005 GIFT, a flexible content based image retrieval system. 00006 Copyright (C) 1998, 1999, 2000, 2001, 2002, CUI University of Geneva 00007 00008 Copyright (C) 2003, 2004 Bayreuth University 00009 2005 Bamberg University 00010 This program is free software; you can redistribute it and/or modify 00011 it under the terms of the GNU General Public License as published by 00012 the Free Software Foundation; either version 2 of the License, or 00013 (at your option) any later version. 00014 00015 This program is distributed in the hope that it will be useful, 00016 but WITHOUT ANY WARRANTY; without even the implied warranty of 00017 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00018 GNU General Public License for more details. 00019 00020 You should have received a copy of the GNU General Public License 00021 along with this program; if not, write to the Free Software 00022 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00023 00024 */ 00025 /*************************************** 00026 * 00027 * CQUERYNORMALIZER 00028 * 00029 **************************************** 00030 * 00031 * modification history: 00032 * 00033 * HM 090399 created the documentation 00034 * 00035 **************************************** 00036 * 00037 * compiler defines used: 00038 * 00039 * 00040 ****************************************/ 00041 #ifndef _CQUERYNORMALIZER 00042 #define _CQUERYNORMALIZER 00043 #include "libGIFTQuInvertedFile/include/uses-declarations.h" 00044 #include "libGIFTAcInvertedFile/include/CDocumentFrequencyElement.h" 00045 #include "libGIFTQuInvertedFile/include/CWeightingFunction.h" 00046 #include "libGIFTAcInvertedFile/include/CAcInvertedFile.h" 00047 00055 class CQueryNormalizer{ 00056 00057 protected: 00058 00059 /*************************************** 00060 * 00061 * 00062 * 00063 ***************************************/ 00065 double mValue; 00066 /*************************************** 00067 * 00068 * 00069 * 00070 ***************************************/ 00072 const CAcInvertedFile* mAccessor; 00073 00074 public: 00075 /*************************************** 00076 * 00077 * 00078 * 00079 ***************************************/ 00081 CQueryNormalizer(const CAcInvertedFile* inAccessor=0); 00082 00083 /*************************************** 00084 * 00085 * 00086 * 00087 ***************************************/ 00089 void setAccessor(const CAcInvertedFile* inAccessor); 00090 00091 /*************************************** 00092 * 00093 * 00094 * 00095 ***************************************/ 00097 virtual void reset(); 00098 00099 /*************************************** 00100 * 00101 * 00102 * 00103 ***************************************/ 00105 virtual double getValue()const; 00106 00107 /*************************************** 00108 * 00109 * 00110 * 00111 ***************************************/ 00113 virtual void considerQueryFeature(const CWeightingFunction& 00114 inFeature); 00115 /*************************************** 00116 * 00117 * returning a copy of this 00118 * 00119 ***************************************/ 00120 virtual CQueryNormalizer* clone()const; 00121 }; 00122 #endif