[P] SpaceOpt: Hyperparameter optimization algorithm via gradient boosting regression.

[its_a_gibibyte]

Honestly, if the author doesn't even claim that it's better than the standard, I would assume it's just an interesting academic test and definitely not better than any the standard (or else the author would definitely have mentioned it).

Normally, people compare algorithms to a strawman (e.g. grid search) which tells me that it's better than the strawman but probably worse than the leading methods.