saealib.GlobalSurrogateManager#

class saealib.GlobalSurrogateManager(surrogate, training_set=None, accuracy_evaluator=None)[ソース]#

ベースクラス: SurrogateManager

Surrogate manager that fits once on the full archive.

Fits the surrogate on all archived solutions, then predicts and scores all candidates in a single batch. Suitable when global approximation quality is sufficient.

パラメータ:

  • surrogate (Surrogate) -- Surrogate model instance.

  • training_set (TrainingSet or None) -- Strategy object for building training data. Defaults to ArchiveObjectiveSet().

  • accuracy_evaluator (AccuracyEvaluator or None) -- If provided, fit() computes accuracy metrics after each fit and stores them in last_accuracy.

Methods

__init__

contract

Return the global-manager contract.

fit

Fit the surrogate on the full archive.

on_generation_end

End-of-generation hook; override to update internal state.

predict

Fit on full archive, then predict all candidates at once.

with_on_generation_end

Return a copy of this manager with fn appended to the hook.

Method Details

GlobalSurrogateManager.__init__(surrogate, training_set=None, accuracy_evaluator=None)[ソース]#
パラメータ:
GlobalSurrogateManager.contract()[ソース]#

Return the global-manager contract.

戻り値の型:

ComponentContract

GlobalSurrogateManager.fit(archive, ctx=None)[ソース]#

Fit the surrogate on the full archive.

If an accuracy_evaluator was supplied at construction, accuracy metrics are computed immediately after fitting and stored in last_accuracy.

パラメータ:

  • archive (Archive)

  • ctx (OptimizationState | None)

戻り値の型:

None

GlobalSurrogateManager.on_generation_end(gen, archive, ctx=None)#

End-of-generation hook; override to update internal state.

パラメータ:

  • gen (int)

  • archive (Archive)

  • ctx (OptimizationState | None)

戻り値の型:

None

GlobalSurrogateManager.predict(candidates_x, archive, ctx=None, *, refit=True)[ソース]#

Fit on full archive, then predict all candidates at once.

パラメータ:

  • candidates_x (np.ndarray)

  • archive (Archive)

  • ctx (OptimizationState | None)

  • refit (bool)

戻り値の型:

SurrogatePrediction

GlobalSurrogateManager.with_on_generation_end(fn)#

Return a copy of this manager with fn appended to the hook.

パラメータ:

fn (callable) -- fn(gen, archive, ctx) -> None

戻り値:

Shallow copy with the hook registered.

戻り値の型:

SurrogateManager