At the F8 developer conference, Facebook announced a new open-source AI library for Bayesian optimization called BoTorch. BoTorch is built on PyTorch and can integrate with its neural network modules. It also supports GPUs and autograd. More info can be found here:

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• Official site: https://botorch.org
• Github repo: https://github.com/pytorch/botorch
• Techcruch article: https://techcrunch.com/2019/05/01/facebook-open-sources-ax-and-botorch-to-simplify-ai-model-optimization/