[Question] How do you do hyperparameter searches in ML?

I know how to do hyperparameter searches. ☺

This is a survey. I want to know is how you do hyperparameter searches. It doesn’t matter whether your system is good or bad. I won’t judge you. I just want to know what systems other people are using in the real world right now.

Any information you’re willing to share would help me out here, but there are two questions I’m especially interested in.

  1. What algorithm do you use? (Do you use random search, grid search or Bayes search? Do you do some iterative process? Do you do something else entirely?)

  2. Do you cache anything? If so, what’s your process?

I’m also curious what industry you’re in, but if you’re not comfortable sharing that some information is better than none.