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from hyperactive.optimizers import ( | ||
HillClimbingOptimizer, | ||
StochasticHillClimbingOptimizer, | ||
RepulsingHillClimbingOptimizer, | ||
SimulatedAnnealingOptimizer, | ||
DownhillSimplexOptimizer, | ||
RandomSearchOptimizer, | ||
GridSearchOptimizer, | ||
RandomRestartHillClimbingOptimizer, | ||
RandomAnnealingOptimizer, | ||
PowellsMethod, | ||
PatternSearch, | ||
ParallelTemperingOptimizer, | ||
ParticleSwarmOptimizer, | ||
SpiralOptimization, | ||
EvolutionStrategyOptimizer, | ||
BayesianOptimizer, | ||
LipschitzOptimizer, | ||
DirectAlgorithm, | ||
TreeStructuredParzenEstimators, | ||
ForestOptimizer, | ||
) | ||
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optimizers = ( | ||
"Optimizer", | ||
[ | ||
(HillClimbingOptimizer), | ||
(StochasticHillClimbingOptimizer), | ||
(RepulsingHillClimbingOptimizer), | ||
(SimulatedAnnealingOptimizer), | ||
(DownhillSimplexOptimizer), | ||
(RandomSearchOptimizer), | ||
(GridSearchOptimizer), | ||
(RandomRestartHillClimbingOptimizer), | ||
(RandomAnnealingOptimizer), | ||
(PowellsMethod), | ||
(PatternSearch), | ||
(ParallelTemperingOptimizer), | ||
(ParticleSwarmOptimizer), | ||
(SpiralOptimization), | ||
(EvolutionStrategyOptimizer), | ||
(BayesianOptimizer), | ||
(LipschitzOptimizer), | ||
(DirectAlgorithm), | ||
(TreeStructuredParzenEstimators), | ||
(ForestOptimizer), | ||
], | ||
) | ||
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optimizers_strat = ( | ||
"Optimizer_strat", | ||
[ | ||
(HillClimbingOptimizer), | ||
(StochasticHillClimbingOptimizer), | ||
(RepulsingHillClimbingOptimizer), | ||
(SimulatedAnnealingOptimizer), | ||
(DownhillSimplexOptimizer), | ||
(RandomSearchOptimizer), | ||
(GridSearchOptimizer), | ||
(RandomRestartHillClimbingOptimizer), | ||
(RandomAnnealingOptimizer), | ||
(PowellsMethod), | ||
(PatternSearch), | ||
(ParallelTemperingOptimizer), | ||
(ParticleSwarmOptimizer), | ||
(SpiralOptimization), | ||
(EvolutionStrategyOptimizer), | ||
(BayesianOptimizer), | ||
(LipschitzOptimizer), | ||
(DirectAlgorithm), | ||
(TreeStructuredParzenEstimators), | ||
(ForestOptimizer), | ||
], | ||
) | ||
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optimizers_non_smbo = ( | ||
"Optimizer_non_smbo", | ||
[ | ||
(HillClimbingOptimizer), | ||
(StochasticHillClimbingOptimizer), | ||
(RepulsingHillClimbingOptimizer), | ||
(SimulatedAnnealingOptimizer), | ||
(DownhillSimplexOptimizer), | ||
(RandomSearchOptimizer), | ||
(GridSearchOptimizer), | ||
(RandomRestartHillClimbingOptimizer), | ||
(RandomAnnealingOptimizer), | ||
(PowellsMethod), | ||
(PatternSearch), | ||
(ParallelTemperingOptimizer), | ||
(ParticleSwarmOptimizer), | ||
(SpiralOptimization), | ||
(EvolutionStrategyOptimizer), | ||
], | ||
) | ||
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optimizers_smbo = ( | ||
"Optimizer_smbo", | ||
[ | ||
(BayesianOptimizer), | ||
(LipschitzOptimizer), | ||
(DirectAlgorithm), | ||
(TreeStructuredParzenEstimators), | ||
(ForestOptimizer), | ||
], | ||
) |
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import pytest | ||
import numpy as np | ||
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from hyperactive import Hyperactive | ||
from hyperactive.optimizers.strategies import CustomOptimizationStrategy | ||
from hyperactive.optimizers import RandomSearchOptimizer | ||
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from ._parametrize import optimizers | ||
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@pytest.mark.parametrize(*optimizers) | ||
def test_strategy_early_stopping_0(Optimizer): | ||
def objective_function(para): | ||
score = -para["x1"] * para["x1"] | ||
return score | ||
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search_space = { | ||
"x1": list(np.arange(0, 100, 0.1)), | ||
} | ||
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n_iter_no_change = 5 | ||
early_stopping = { | ||
"n_iter_no_change": n_iter_no_change, | ||
} | ||
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optimizer1 = Optimizer() | ||
optimizer2 = RandomSearchOptimizer() | ||
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opt_strat = CustomOptimizationStrategy() | ||
opt_strat.add_optimizer(optimizer1, duration=0.5, early_stopping=early_stopping) | ||
opt_strat.add_optimizer(optimizer2, duration=0.5) | ||
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n_iter = 30 | ||
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hyper = Hyperactive() | ||
hyper.add_search( | ||
objective_function, | ||
search_space, | ||
optimizer=opt_strat, | ||
n_iter=n_iter, | ||
initialize={"warm_start": [{"x1": 0}]}, | ||
) | ||
hyper.run() | ||
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optimizer1 = hyper.opt_pros[0].optimizer_setup_l[0]["optimizer"] | ||
optimizer2 = hyper.opt_pros[0].optimizer_setup_l[1]["optimizer"] | ||
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search_data = optimizer1.search_data | ||
n_performed_iter = len(search_data) | ||
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print("\n n_performed_iter \n", n_performed_iter) | ||
print("\n n_iter_no_change \n", n_iter_no_change) | ||
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assert n_performed_iter == (n_iter_no_change + 1) |