Source: rank/salsa.h


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/***************************************************************************
                          salsa.h  -  description
                             -------------------
    begin                : Mon Mär 10 2003
    copyright            : (C) 2003 by Ingmar Bauer
    email                : ingmar@metacrawler.de
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 ***************************************************************************/

#ifndef SALSA_H
#define SALSA_H


/**Stochastic Approach for Link Structure Analysis
  *@author Ingmar Bauer
  */

class salsa {
public: 
  salsa(datasource &ds);
  salsa(matrixsource &ms, float c, float eps);
  ~salsa();
  int createMatrices();
  int saveMatrices(string fname);
  vector calc();
  vector calc_eigenvector();

private:
  int size;
  datasource *ds;
  matrixsource *ms;
  matrix adj;	// pointer to adjascent matrix

  matrix hub;
  /** dampening factor */
  float c;
  float eps;
  matrix auth;
};

#endif

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