OptunaHub: A Platform for Black-Box Optimization
Abstract
Black-box optimization (BBO) underpins advances in domains such as AutoML and Materials Informatics, yet implementations of algorithms and benchmarks remain fragmented across research communities. We introduce OptunaHub (https://hub.optuna.org/), a community-oriented, decentralized platform for distributing BBO components under a unified Optuna-compatible interface. OptunaHub enables independent publication, discovery, and reuse of optimization algorithms and benchmark problems through a lightweight Python module, a contributor-driven registry, and a searchable web interface. The source code is publicly available in the https://github.com/optuna/optunahuboptunahub, https://github.com/optuna/optunahub-registryoptunahub-registry, and https://github.com/optuna/optunahub-weboptunahub-web repositories under the Optuna organization on GitHub (https://github.com/optuna/).
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