optuna.terminator.StaticErrorEvaluator

class optuna.terminator.StaticErrorEvaluator(constant)[source]

An error evaluator that always returns a constant value.

This evaluator can be used to terminate the optimization when the evaluated improvement potential is below the fixed threshold.

Parameters:: constant (float) – A user-specified constant value to always return as an error estimate.

Note

Added in v3.2.0 as an experimental feature. The interface may change in newer versions without prior notice. See https://github.com/optuna/optuna/releases/tag/v3.2.0.

Methods

evaluate(trials, study_direction)