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CQueryNormalizer.h

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     This program is free software; you can redistribute it and/or modify
00009     it under the terms of the GNU General Public License as published by
00010     the Free Software Foundation; either version 2 of the License, or
00011     (at your option) any later version.
00012 
00013     This program is distributed in the hope that it will be useful,
00014     but WITHOUT ANY WARRANTY; without even the implied warranty of
00015     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00016     GNU General Public License for more details.
00017 
00018     You should have received a copy of the GNU General Public License
00019     along with this program; if not, write to the Free Software
00020     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00021 
00022 */
00023 /***************************************
00024 *
00025 * CQUERYNORMALIZER
00026 *
00027 ****************************************
00028 *
00029 * modification history:
00030 *
00031 * HM 090399 created the documentation
00032 *
00033 ****************************************
00034 *
00035 * compiler defines used:
00036 *
00037 *
00038 ****************************************/
00039 #ifndef _CQUERYNORMALIZER
00040 #define _CQUERYNORMALIZER
00041 #include "libGIFTQuInvertedFile/include/uses-declarations.h"
00042 #include "libGIFTAcInvertedFile/include/CDocumentFrequencyElement.h"
00043 #include "libGIFTQuInvertedFile/include/CWeightingFunction.h"
00044 #include "libGIFTAcInvertedFile/include/CAcInvertedFile.h"
00045 
00053 class CQueryNormalizer{
00054 
00055  protected:
00056 
00057     /***************************************
00058      *
00059      * 
00060      *
00061      ***************************************/
00063     double mValue;
00064     /***************************************
00065      *
00066      * 
00067      *
00068      ***************************************/
00070     const CAcInvertedFile* mAccessor;
00071 
00072  public:
00073     /***************************************
00074      *
00075      * 
00076      *
00077      ***************************************/
00079     CQueryNormalizer(const CAcInvertedFile* inAccessor=0);
00080 
00081     /***************************************
00082      *
00083      * 
00084      *
00085      ***************************************/
00087     void setAccessor(const CAcInvertedFile* inAccessor);
00088 
00089     /***************************************
00090      *
00091      * 
00092      *
00093      ***************************************/
00095     virtual void reset();
00096 
00097     /***************************************
00098      *
00099      * 
00100      *
00101      ***************************************/
00103     virtual double getValue()const;
00104 
00105     /***************************************
00106      *
00107      * 
00108      *
00109      ***************************************/
00111     virtual void considerQueryFeature(const CWeightingFunction& 
00112                                       inFeature);
00113     /***************************************
00114      *
00115      * returning a copy of this
00116      *
00117      ***************************************/
00118     virtual CQueryNormalizer* clone()const;
00119 };
00120 #endif

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