When runing a BTBSession with a Tunable({}) this will fail to record the score obtained with the "default" configuration of {}.
This case is an unusual one as the object Tunable without hyperparameters to tune shouldn't exist, however, during research on tuning hyperparameters of pipelines, we have faced this problem when there was no tunable hyperparameters on the pipeline.
Solution propose
We noticed that the cardinality is 1. In this case, the Tuner for that Tunable shouldn't be instantiated, tuner = None and then when attempts to record simply check that the selected tuner is not None.
Description
When runing a
BTBSessionwith aTunable({})this will fail torecordthe score obtained with the "default" configuration of{}.This case is an unusual one as the object
Tunablewithout hyperparameters to tune shouldn't exist, however, during research on tuning hyperparameters of pipelines, we have faced this problem when there was no tunable hyperparameters on the pipeline.Solution propose
We noticed that the
cardinalityis 1. In this case, theTunerfor thatTunableshouldn't be instantiated,tuner = Noneand then when attempts torecordsimply check that the selectedtuneris notNone.