src/CotIndex.h

/*  -*- C++ -*-

    textIR - A fast text document retrieval engine

    Copyright (C) 2005-2009 Laurence Park

    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 3 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, see <http://www.gnu.org/licenses/>.

    File information:
    $Header: /home/staff/lapark/cvsroot/web_search/textIR/src/CotIndex.h,v 1.4.2.2 2009/11/02 14:35:36 lapark Exp $
*/

#ifndef COTINDEX_H
#define COTINDEX_H

#include "SortedSubIndex.tcc"
#include "Triplef_tfd.h"
#include "ElementFloatIndex.tcc"
#include "FileName.h"
#include "CSCTriple_matrix.tcc"


class CotIndex : public ElementFloatIndex<SortedSubIndex<WordSubIndex> > {
public:

  CotIndex(int totalWords, BlockStats *stats, 
           SortedSubIndex<WordSubIndex> *index,
           FileName *fileName);
  ~CotIndex(void);

  bool calculateRow(int currentRealWord);

  int listRealPosition(int position);

  int indexRealPosition(int position);

private:
  Quantise *createQuantiser(float lower, float upper);

  CSCTriple_Matrix<TRIPLET> *_cscIndex;
};

#endif

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