eoOneFifthMutation< EOT > Class Template Reference
the dynamic version: just say it is updatable - and write the update() method! here the 1 fifth rule: count the proportion of successful mutations, and increase sigma if more than threshold (1/5 !) More...
#include <eoNormalMutation.h>
Inheritance diagram for eoOneFifthMutation< EOT >:
Public Types | |
| typedef EOT::Fitness | Fitness |
Public Member Functions | |
| eoOneFifthMutation (eoEvalFunc< EOT > &_eval, double &_sigmaInit, unsigned _windowSize=10, double _updateFactor=0.83, double _threshold=0.2) | |
| (Default) Constructor. | |
| virtual std::string | className () const |
| The class name. | |
| bool | operator() (EOT &_eo) |
| Do it! calls the standard mutation, then checks for success and updates stats. | |
| void | update () |
| the method that will be called every generation if the object is added to the checkpoint | |
Private Attributes | |
| eoEvalFunc< EOT > & | eval |
| double | threshold |
| double | updateFactor |
| std::vector< unsigned > | nbMut |
| std::vector< unsigned > | nbSuccess |
| unsigned | genIndex |
Detailed Description
template<class EOT>
class eoOneFifthMutation< EOT >
the dynamic version: just say it is updatable - and write the update() method! here the 1 fifth rule: count the proportion of successful mutations, and increase sigma if more than threshold (1/5 !)
Definition at line 177 of file eoNormalMutation.h.
Constructor & Destructor Documentation
template<class EOT>
| eoOneFifthMutation< EOT >::eoOneFifthMutation | ( | eoEvalFunc< EOT > & | _eval, | |
| double & | _sigmaInit, | |||
| unsigned | _windowSize = 10, |
|||
| double | _updateFactor = 0.83, |
|||
| double | _threshold = 0.2 | |||
| ) | [inline] |
(Default) Constructor.
- Parameters:
-
eval the evaluation function, needed to recompute the fitmess _sigmaInit the initial value for uniform mutation _windowSize the size of the window for statistics _threshold the threshold (the 1/5 - 0.2) _updateFactor multiplicative update factor for sigma
Definition at line 195 of file eoNormalMutation.h.
Member Function Documentation
template<class EOT>
| bool eoOneFifthMutation< EOT >::operator() | ( | EOT & | _eo | ) | [inline] |
Do it! calls the standard mutation, then checks for success and updates stats.
- Parameters:
-
_eo The chromosome undergoing the mutation
Reimplemented from eoNormalMutation< EOT >.
Definition at line 216 of file eoNormalMutation.h.
References EO< F >::fitness(), EO< F >::invalid(), and EO< F >::invalidate().
The documentation for this class was generated from the following file:
