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arXiv 2104.10201cs.LGcs.AIstat.ML
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贝叶斯优化优于随机搜索用于机器学习超参数调整:2020年黑箱优化挑战赛分析

Bayesian Optimization is Superior to Random Search for Machine Learning Hyperparameter Tuning: Analysis of the Black-Box Optimization Challenge 2020

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Ryan Turner, David Eriksson, Michael McCourt, Juha Kiili, Eero Laaksonen, Zhen Xu, Isabelle Guyon

摘要:

本文介绍了2020年7月至10月在NeurIPS 2020上进行的黑盒优化(BBO)挑战的结果和见解。该挑战强调了评估无导数优化器对于调整机器学习模型的超参数的重要性。这是第一个以机器学习为重点的黑盒优化挑战。它基于标准机器学习模型在真实数据集上的调整(验证集)性能。这种竞争具有广泛的影响,因为黑盒优化(例如,贝叶斯优化)与几乎每个机器学习项目以及机器学习之外的许多应用程序中的超参数调优相关。最终的排行榜是使用保持(隐藏)目标函数的优化性能确定的,其中优化器在没有人为干预的情况下运行。基线是使用几个开源黑盒优化包的默认设置以及随机搜索来设置的。

英文摘要:

This paper presents the results and insights from the black-box optimization (BBO) challenge at NeurIPS 2020 which ran from July-October, 2020. The challenge emphasized the importance of evaluating derivative-free optimizers for tuning the hyperparameters of machine learning models. This was the first black-box optimization challenge with a machine learning emphasis. It was based on tuning (validation set) performance of standard machine learning models on real datasets. This competition has widespread impact as black-box optimization (e.g., Bayesian optimization) is relevant for hyperparameter tuning in almost every machine learning project as well as many applications outside of machine learning. The final leaderboard was determined using the optimization performance on held-out (hidden) objective functions, where the optimizers ran without human intervention. Baselines were set using the default settings of several open-source black-box optimization packages as well as random search.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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