2 papers
cs.LG2026
Optuna Constrained Tree-Structured Parzen Estimator Is a Joint Density Generalization of c-TPE
Shuhei Watanabe, Kaichi Irie
Constrained hyperparameter optimization (HPO) is common in practice, yet Optuna's widely used constrained TPE lacks algorithmic analysis. While c-TPE proposes an expected constrain…
cs.LG2025
Batch Acquisition Function Evaluations and Decouple Optimizer Updates for Faster Bayesian Optimization
Kaichi Irie, Shuhei Watanabe, Masaki Onishi
Bayesian optimization (BO) efficiently finds high-performing parameters by maximizing an acquisition function, which models the promise of parameters. A major computational bottlen…