smac.initial_design.abstract_initial_design

Classes

AbstractInitialDesign(scenario[, n_configs, ...])

Base class for initial design strategies that evaluates multiple configurations.

Interfaces

class smac.initial_design.abstract_initial_design.AbstractInitialDesign(scenario, n_configs=None, n_configs_per_hyperparameter=10, max_ratio=0.25, additional_configs=None, seed=None)[source]

Bases: object

Base class for initial design strategies that evaluates multiple configurations.

Parameters:

  • scenario (Scenario)

  • n_configs (int | None, defaults to None) – Number of initial configurations (disables the arguments n_configs_per_hyperparameter).

  • n_configs_per_hyperparameter (int, defaults to 10) – Number of initial configurations per hyperparameter. For example, if my configuration space covers five hyperparameters and n_configs_per_hyperparameter is set to 10, then 50 initial configurations will be samples.

  • max_ratio (float, defaults to 0.25) – Use at most scenario.n_trials * max_ratio number of configurations in the initial design. Additional configurations are not affected by this parameter.

  • additional_configs (list[Configuration], defaults to []) – Adds additional configurations to the initial design.

  • seed (int | None, default to None)

property meta: dict[str, Any]

Returns the meta data of the created object.

select_configurations()[source]

Selects the initial configurations. Internally, _select_configurations is called, which has to be implemented by the child class.

Returns:

configs – Configurations from the child class.

Return type:

list[Configuration]

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