/usr/include/libGIFTAcInvertedFile/include/CAcInvertedFile.h is in libgnuift0-dev 0.1.14-12.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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*/
/*
GIFT, a flexible content based image retrieval system.
Copyright (C) 1998, 1999, 2000, 2001, 2002, CUI University of Geneva
Copyright (C) 2003, 2004 Bayreuth University
2005 Bamberg University
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
// -*- mode: c++ -*-
class CXMLElement;
/**
*
*
* This class manages the access to the inverted file as well
* as its generation
*
*
*
* modification history:
*
* WM 1099 changed documentation format
* completed documentation
* HM 090399 created the documentation
* WM 1098 created the file
*
*
*
* compiler defines used:
*
*
*/
#ifndef _CINVERTEDFILEACCESSOR
#define _CINVERTEDFILEACCESSOR
#include "libGIFTAcInvertedFile/include/uses-declarations.h"
#include <string>
#include "libMRML/include/TID.h"
#include "libMRML/include/CAccessor.h"
#include "libGIFTAcInvertedFile/include/CDocumentFrequencyList.h"
#include <iostream>
#include <fstream>
#include <map>
#include <vector>
#ifdef HAS_HASH_MAP
#include <hash_map>
#else
#define hash_map map
#endif
#include <functional>
#include <algorithm>
#include "libMRML/include/CMagic.h"
typedef TID TFeatureID ;
/**
An accessor to an inverted file. This access is done
"by hand" at present this not really efficient, however
we plan to move to memory mapped files.
*/
class CAcInvertedFile:public CAccessor{
public:
/** for testing if the inverted file is correctly constructed*/
virtual bool operator()()const =0;
/** <HIER-WIRDS-INTERESSANT-> */
/** Translate a DocumentID to a URL (for output) */
virtual string IDToURL(TID inID)const =0;
/** Translate an URL to its document ID */
virtual pair<bool,TID> URLToID(const string& inURL)const =0;
/**@name The proper inverted file access*/
//@{
/** Give the List of documents containing the feature inFID
CORNELIA:
CDocumentFrequencyList ist nichts anderes als eine liste von
int,float paaren:
struct{
int mID,
float mFrequency;
}
*/
virtual CDocumentFrequencyList* FeatureToList(TFeatureID inFID)const =0;
/** List of features contained by a document with URL inURL*/
virtual CDocumentFrequencyList* URLToFeatureList(string inURL)const =0;
/** List of features contained by a document with ID inDID */
virtual CDocumentFrequencyList* DIDToFeatureList(TID inDID)const =0;
/** </HIER-WIRDS-INTERESSANT-> */
/** For drawing random sets mainly a translation of
getRandomURLs
CORNELIA:
IM MOMENT KOENNEN WIR DIESE FUNKTION VERGESSEN
virtual void getRandomRLLs(list<string>&,
list<string>::size_type)const;
*/
//@}
/**@name Accessing information about features*/
//@{
/** Collection frequency for a given feature */
virtual double FeatureToCollectionFrequency(TFeatureID)const =0;
/** What kind of feature is the feature with ID inFeatureID? */
virtual unsigned int getFeatureDescription(TID inFeatureID)const =0;
//@}
/**@name Accessing additional document information*/
//@{
/** returns the maximum document frequency for one document ID */
virtual double DIDToMaxDocumentFrequency(TID)const =0;
/** Returns the document-frequency square sum for a given document ID */
virtual double DIDToDFSquareSum(TID)const =0;
/** Returns this function for a given document ID */
virtual double DIDToSquareDFLogICFSum(TID)const =0;
//@}
/*@name Inverted File Generation and Consistency Checking*/
//@{
/** Generating an inverted File, if there is none.
*/
virtual bool generateInvertedFile() =0;
/**Check the consistency of the inverted file system accessed
by this accessor.*/
virtual bool checkConsistency() =0;
//@}
/** Getting a list of all features contained in this.
This function is necessary, because in the present
system only about 50 percent of the features are
really used.
A feature is considered used if it arises in at least one image
*/
virtual list<TID>* getAllFeatureIDs()const =0;
};
#endif
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