optuna_integration.botorch.qnehvi_candidates_func

optuna_integration.botorch.qnehvi_candidates_func(train_x, train_obj, train_con, bounds, pending_x)

Quasi MC-based batch Noisy Expected Hypervolume Improvement (qNEHVI).

According to Botorch/Ax documentation, this function may perform better than qEHVI (qehvi_candidates_func). (cf. https://botorch.org/tutorials/constrained_multi_objective_bo )

See also

qei_candidates_func() for argument and return value descriptions.

Note

Added in v3.1.0 as an experimental feature. The interface may change in newer versions without prior notice. See https://github.com/optuna/optuna/releases/tag/v3.1.0.

Parameters:

• train_x (torch.Tensor) –

• train_obj (torch.Tensor) –

• train_con (torch.Tensor | None) –

• bounds (torch.Tensor) –

• pending_x (torch.Tensor | None) –

Return type:

torch.Tensor