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Added a full algorithm to the new EO, with terminators, and things like that

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jmerelo 1999-10-08 11:39:20 +00:00
commit 259420d9ce
9 changed files with 396 additions and 48 deletions
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10
eo/src/eo
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@ -59,10 +59,17 @@
#include <eoPopOps.h>
#include <eoBitOp.h>
// Evaluation functions
#include <eoEvalFunc.h>
#include <eoEvalFuncPtr.h>
#include <eoEvaluator.h>
// Terminators
#include <eoTerm.h>
#include <eoGenTerm.h>
#include <eoFitTerm.h>
// Selection and reproduction stuff
#include <eoLottery.h>
#include <eoBreeder.h>
#include <eoInsertion.h>
@ -71,6 +78,9 @@
#include <eoProportionalOpSel.h>
// Algorithms
#include <eoEasyEA.h>
//-----------------------------------------------------------------------------
// to be continued ...
//-----------------------------------------------------------------------------

65
eo/src/eoEvalFunc.h
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@ -1,8 +1,8 @@
// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
//-----------------------------------------------------------------------------
// eoEvalFunc.h
// (c) GeNeura Team, 1998
// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
//-----------------------------------------------------------------------------
// eoEvalFunc.h
// (c) GeNeura Team, 1998
/*
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
@ -20,32 +20,31 @@
Contact: todos@geneura.ugr.es, http://geneura.ugr.es
*/
//-----------------------------------------------------------------------------
#ifndef eoEvalFunc_H
#define eoEvalFunc_H
/** Evaluate: takes one EO and sets its "fitness" property
* returning this fitness also. That is why EOT is passed by
* non-const reference: it must be altered within evaluate.\\
The requirements on the types with which this class is to be
instantiated with are null, or else, they depend on the particular
class it's going to be applied to; EO does not impose any requirement
on it. If you subclass this abstract class, and use it to evaluate an
EO, the requirements on this EO will depend on the evaluator.
*/
template< class EOT >
struct eoEvalFunc {
#ifdef _MSC_VER
typedef EOT::Fitness EOFitT;
#else
typedef typename EOT::Fitness EOFitT;
#endif
/// Effectively applies the evaluation function to an EO or urEO
virtual void operator() ( EOT & _eo ) const = 0;
};
//-----------------------------------------------------------------------------
#ifndef eoEvalFunc_H
#define eoEvalFunc_H
/** Evaluate: takes one EO and sets its "fitness" property
* returning this fitness also. That is why EOT is passed by
* non-const reference: it must be altered within evaluate.\\
The requirements on the types with which this class is to be
instantiated with are null, or else, they depend on the particular
class it's going to be applied to; EO does not impose any requirement
on it. If you subclass this abstract class, and use it to evaluate an
EO, the requirements on this EO will depend on the evaluator.
*/
template<class EOT> struct eoEvalFunc {
#ifdef _MSC_VER
typedef EOT::Fitness EOFitT;
#else
typedef typename EOT::Fitness EOFitT;
#endif
/// Effectively applies the evaluation function to an EO or urEO
virtual void operator() ( EOT & _eo ) const = 0;
};
#endif

64
eo/src/eoFitTerm.h Normal file
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@ -0,0 +1,64 @@
// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
//-----------------------------------------------------------------------------
// eoGenTerm.h
// (c) GeNeura Team, 1999
/*
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Contact: todos@geneura.ugr.es, http://geneura.ugr.es
*/
//-----------------------------------------------------------------------------
#ifndef _EOFITTERM_H
#define _EOFITTERM_H
#include <eoTerm.h>
/** Fitness termination: terminates after a the difference between the
fitness of the best individual and a maximum fitness to achieve is less
than certain number called epsilon., i.e., |maximum-fitness|<epsilon
*/
template< class EOT>
class eoFitTerm: public eoTerm<EOT> {
public:
/// Ctors/dtors
eoFitTerm( const float _maximum, const float _epsilon )
: eoTerm<EOT> (), maximum( _maximum ), epsilon(_epsilon){};
/// Copy ctor
eoFitTerm( const eoFitTerm& _t )
: eoTerm<EOT> ( _t ), maximum( _t.maximum ),
epsilon(_t.epsilon){};
///
virtual ~eoFitTerm() {};
/** Returns false when a certain number of generations is
* reached */
virtual bool operator() ( const eoPop<EOT>& _vEO ) {
float bestFitness=_vEO[0].fitness();
float dif=bestFitness-maximum;
dif=(dif<0)?-dif:dif;
return (dif>epsilon ) || (bestFitness > maximum);
}
private:
float maximum, epsilon;
};
#endif

82
eo/src/eoGenTerm.h Normal file
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@ -0,0 +1,82 @@
// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
//-----------------------------------------------------------------------------
// eoGenTerm.h
// (c) GeNeura Team, 1999
/*
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Contact: todos@geneura.ugr.es, http://geneura.ugr.es
*/
//-----------------------------------------------------------------------------
#ifndef _EOGENTERM_H
#define _EOGENTERM_H
#include <eoTerm.h>
/** Generational termination: terminates after a number of generations
*/
template< class EOT>
class eoGenTerm: public eoTerm<EOT> {
public:
/// Ctors/dtors
eoGenTerm( unsigned _totalGens)
: eoTerm<EOT> (), repTotalGenerations( _totalGens ),
thisGeneration(0){};
/// Copy Ctor
eoGenTerm( const eoGenTerm& _t)
: eoTerm<EOT> ( _t ), repTotalGenerations( _t.repTotalGenerations ),
thisGeneration(0){};
/// Assignment Operator
const eoGenTerm& operator = ( const eoGenTerm& _t) {
if ( &_t != this ) {
repTotalGenerations = _t.repTotalGenerations;
thisGeneration = 0;
}
return *this;
}
/// Dtor
virtual ~eoGenTerm() {};
/** Returns false when a certain number of generations is
* reached */
virtual bool operator() ( const eoPop<EOT>& _vEO ) {
thisGeneration++;
// cout << " [" << thisGeneration << "] ";
return (thisGeneration < repTotalGenerations) ; // for the postincrement
}
/** Sets the number of generations to reach
and sets the current generation to 0 (the begin)*/
virtual void totalGenerations( unsigned _tg ) {
repTotalGenerations = _tg;
// thisGeneration = 0;
};
/** Returns the number of generations to reach*/
virtual unsigned totalGenerations( ) {
return repTotalGenerations;
};
private:
unsigned repTotalGenerations, thisGeneration;
};
#endif

11
eo/src/eoGeneration.h
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@ -28,6 +28,7 @@
//-----------------------------------------------------------------------------
#include <eoAlgo.h> // eoPop
#include <eoEvalFunc.h>
#include <eoPopOps.h> // eoSelect, eoTranform, eoMerge
//-----------------------------------------------------------------------------
@ -43,8 +44,14 @@ template<class Chrom> class eoGeneration: public eoAlgo<Chrom>
eoMerge<Chrom>& _replace,
eoEvalFunc<Chrom>& _evaluator):
select(_select), transform(_transform),
replace(_replace), evaluator( _evaluator) {}
replace(_replace), evaluator( _evaluator) {};
/// Copy Constructor.
eoGeneration(eoGeneration<Chrom>& _gen):
select(_gen.select), transform(_gen.transform),
replace(_gen.replace), evaluator( _gen.evaluator ) {};
/// Apply one generation of evolution to the population.
virtual void operator()(eoPop<Chrom>& pop) {
eoPop<Chrom> breeders;

50
eo/src/eoTerm.h Normal file
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@ -0,0 +1,50 @@
// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
//-----------------------------------------------------------------------------
// eoTerm.h
// (c) GeNeura Team, 1999
/*
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Contact: todos@geneura.ugr.es, http://geneura.ugr.es
*/
//-----------------------------------------------------------------------------
#ifndef _EOTERM_H
#define _EOTERM_H
#include <eoPop.h>
/** Termination condition for the genetic algorithm
* Takes the population as input, returns true for continue,
* false for termination
*/
template< class EOT>
class eoTerm {
public:
/// Ctors/dtors
virtual ~eoTerm() {};
/** Returns false if the training has to stop, true if it
continues \\
It is non-const since it might change the internal state
of the object, for instance, updating a counter
*/
virtual bool operator() ( const eoPop< EOT >& _pop ) = 0 ;
};
#endif