Hi, I’m @c-bata, an author of cmaes library. Optuna uses a univariate TPE for single objective optimization by default, but you can easily… — Hi, I’m @c-bata, an author of cmaes library. Optuna uses a univariate TPE for single objective optimization by default, but you can easily switch to other samplers. In this article, I introduce CmaEsSampler. It may perform better than Optuna’s default sampler. After reading this article, you will know the followings: