int main()
{
//setup the optimisation
//define your boundaries
OptBoundaries<double> optBoundaries;
optBoundaries.add_boundary(-5.0, 5.0, "X");
//instansiate your calculator
MySolver<double> mySolver;
//number of calculations
unsigned int maxCalculations = 300;
//we want to find the minimum
OptTarget optTarget = MINIMIZE;
//how fast the great deluge algorithm slows down
//http://en.wikipedia.org/wiki/Great_Deluge_algorithm
double coolingFactor = 0.95;
//the initial water level
//http://en.wikipedia.org/wiki/Great_Deluge_algorithm
double waterLevel = 25.0;
//how much rain is added to the water level per iteration
//with x^2 from -5 to +5 the max value is 25, while the min and wanted value is 0
//with 300 calculations, the water level should be pretty close to the optimum of 0
//25/300 => 0.083333 [rain should AT LEAST be that much] => make it 0.15
//http://en.wikipedia.org/wiki/Great_Deluge_algorithm
double rain = 0.15;
//create your optimiser
//using great deluge
OptGreatDeluge<double> opt(optBoundaries,
maxCalculations,
&mySolver,
optTarget,
0.0, //only required if approaching / diverging
coolingFactor,
waterLevel,
rain);
//enable logging
//boundaries object required to know the parameters names for the header
OptBase<double>::enable_logging("example_great_deluge_x_square.log", optBoundaries);
//let's go
OptBase<double>::run_optimisations();
//print result
OptCalculation<double> best = opt.get_best_calculation();
cout << best.to_string_header() << endl;
cout << best.to_string_values() << endl;
return 0;
}
int main() {
//setup the optimisation
//define your boundaries
OptBoundaries<double> optBoundaries;
optBoundaries.add_boundary({-5.0, 5.0, "X"});
//number of calculations
unsigned int maxCalculations = 300;
//we want to find the minimum
OptTarget optTarget = OptTarget::MINIMIZE;
//how fast the great deluge algorithm slows down
//http://en.wikipedia.org/wiki/Great_Deluge_algorithm
double coolingFactor = 0.95;
//the initial water level
//http://en.wikipedia.org/wiki/Great_Deluge_algorithm
double waterLevel = 25.0;
//how much rain is added to the water level per iteration
//with x^2 from -5 to +5 the max value is 25, while the min and wanted value is 0
//with 300 calculations, the water level should be pretty close to the optimum of 0
//25/300 => 0.083333 [rain should AT LEAST be that much] => make it 0.15
//http://en.wikipedia.org/wiki/Great_Deluge_algorithm
double rain = 0.15;
//define your coordinator
OptCoordinator<double, false> coordinator(
maxCalculations,
toOptimize,
optTarget,
0);
//add great deluge as child
coordinator.add_child(make_unique<OptGreatDeluge<double>>(
optBoundaries,
optTarget,
0,
coolingFactor,
waterLevel,
rain));
//let's go
coordinator.run_optimisation();
//print result
OptCalculation<double> best = coordinator.get_best_calculation();
cout << best.to_string_header() << endl;
cout << best.to_string_values() << endl;
return 0;
}
int main()
{
//setup the optimisation
//define your boundaries
OptBoundaries<double> optBoundaries;
optBoundaries.add_boundary(-5.0, 5.0, "X");
//instansiate your calculator
MySolver<double> mySolver;
//number of calculations
unsigned int maxCalculations = 300;
//we want to find the minimum
OptTarget optTarget = MINIMIZE;
//how fast the simulated annealing algorithm slows down
//http://en.wikipedia.org/wiki/Simulated_annealing
double coolingFactor = 0.95;
//the chance in the beginning to follow bad solutions
double startChance = 0.25;
//create your optimiser
//using simulated annealing
OptSimulatedAnnealing<double> opt(optBoundaries,
maxCalculations,
&mySolver,
optTarget,
0.0, //only required if approaching / diverging
coolingFactor,
startChance);
//enable logging
//boundaries object required to know the parameters names for the header
OptBase<double>::enable_logging("example_simulated_annealing_x_square.log", optBoundaries);
//let's go
OptBase<double>::run_optimisations();
//print result
OptCalculation<double> best = opt.get_best_calculation();
cout << best.to_string_header() << endl;
cout << best.to_string_values() << endl;
return 0;
}
int main() {
//setup the optimisation
//define your boundaries
OptBoundaries<double> optBoundaries;
optBoundaries.add_boundary({-5.0, 5.0, "X"});
//number of calculations
unsigned int maxCalculations = 300;
//we want to find the minimum
OptTarget optTarget = OptTarget::MINIMIZE;
//how fast the evolutionary algorithm slows down
//https://en.wikipedia.org/wiki/Evolutionary_algorithm
double coolingFactor = 0.95;
//how many individuals should be spawned in the beginning
//use an even, positiv number
//https://en.wikipedia.org/wiki/Evolutionary_algorithm
unsigned int nIndividualsStart = 50;
//how many individuals shall be selected each generation
//this should also be an even number
//https://en.wikipedia.org/wiki/Evolutionary_algorithm
unsigned int nIndividualsSelection = 10;
//how many children each parent pair should spawn
//use a number > 2
////https://en.wikipedia.org/wiki/Evolutionary_algorithm
unsigned int nIndividualsOffspring = 3;
//how much the offspring should be mutated
//or moved from the center of the parents
//https://en.wikipedia.org/wiki/Evolutionary_algorithm
double mutation = 0.1;
//define your coordinator
OptCoordinator<double, false> coordinator(
maxCalculations,
toOptimize,
optTarget,
0);
//add evolutionary as child
coordinator.add_child(make_unique<OptEvolutionary<double>>(
optBoundaries,
optTarget,
0,
coolingFactor,
nIndividualsStart,
nIndividualsSelection,
nIndividualsOffspring,
mutation));
//let's go
coordinator.run_optimisation();
//print result
OptCalculation<double> best = coordinator.get_best_calculation();
cout << best.to_string_header() << endl;
cout << best.to_string_values() << endl;
return 0;
}
