System documentation of the GNU Image-Finding Tool

CQueryNormalizer.h
1 /* -*- mode: c++ -*-
2 */
3 /*
4 
5  GIFT, a flexible content based image retrieval system.
6  Copyright (C) 1998, 1999, 2000, 2001, 2002, CUI University of Geneva
7 
8  Copyright (C) 2003, 2004 Bayreuth University
9  2005 Bamberg University
10  This program is free software; you can redistribute it and/or modify
11  it under the terms of the GNU General Public License as published by
12  the Free Software Foundation; either version 2 of the License, or
13  (at your option) any later version.
14 
15  This program is distributed in the hope that it will be useful,
16  but WITHOUT ANY WARRANTY; without even the implied warranty of
17  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18  GNU General Public License for more details.
19 
20  You should have received a copy of the GNU General Public License
21  along with this program; if not, write to the Free Software
22  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 
24 */
25 /***************************************
26 *
27 * CQUERYNORMALIZER
28 *
29 ****************************************
30 *
31 * modification history:
32 *
33 * HM 090399 created the documentation
34 *
35 ****************************************
36 *
37 * compiler defines used:
38 *
39 *
40 ****************************************/
41 #ifndef _CQUERYNORMALIZER
42 #define _CQUERYNORMALIZER
43 #include "libGIFTQuInvertedFile/include/uses-declarations.h"
44 #include "libGIFTAcInvertedFile/include/CDocumentFrequencyElement.h"
45 #include "libGIFTQuInvertedFile/include/CWeightingFunction.h"
46 #include "libGIFTAcInvertedFile/include/CAcInvertedFile.h"
47 
56 
57  protected:
58 
59  /***************************************
60  *
61  *
62  *
63  ***************************************/
65  double mValue;
66  /***************************************
67  *
68  *
69  *
70  ***************************************/
72  const CAcInvertedFile* mAccessor;
73 
74  public:
75  /***************************************
76  *
77  *
78  *
79  ***************************************/
81  CQueryNormalizer(const CAcInvertedFile* inAccessor=0);
82 
83  /***************************************
84  *
85  *
86  *
87  ***************************************/
89  void setAccessor(const CAcInvertedFile* inAccessor);
90 
91  /***************************************
92  *
93  *
94  *
95  ***************************************/
97  virtual void reset();
98 
99  /***************************************
100  *
101  *
102  *
103  ***************************************/
105  virtual double getValue()const;
106 
107  /***************************************
108  *
109  *
110  *
111  ***************************************/
113  virtual void considerQueryFeature(const CWeightingFunction&
114  inFeature);
115  /***************************************
116  *
117  * returning a copy of this
118  *
119  ***************************************/
120  virtual CQueryNormalizer* clone()const;
121 };
122 #endif
virtual double getValue() const
Translating the information into a normalizing value in the end.
For normalizing weights like in Salton/Buckley we need to now all the features in the query or all th...
Definition: CQueryNormalizer.h:55
virtual void considerQueryFeature(const CWeightingFunction &inFeature)
Considers a feature.
a universally usable class for weighting.
Definition: CWeightingFunction.h:70
An accessor to an inverted file.
Definition: CAcInvertedFile.h:83

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