arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.15745cs.LGstat.ML
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机器学习算法的超参数优化:理论与实践

On Hyperparameter Optimization of Machine Learning Algorithms: Theory and Practice

University of Western Ontario(西安大略大学)

Li Yang, Abdallah Shami

摘要:

机器学习算法已经广泛应用于各种应用和领域。为了使机器学习模型适应不同的问题,必须调整其超参数。为机器学习模型选择最佳超参数配置对模型的性能有直接影响。它通常需要深入了解机器学习算法和适当的超参数优化技术。虽然存在几种自动优化技术,但当应用于不同类型的问题时,它们具有不同的优点和缺点。研究了常用机器学习模型超参数的优化问题。我们将介绍几种最先进的优化技术,并讨论如何将它们应用于机器学习算法。本文介绍了超参数优化问题的各种库和框架,并讨论了超参数优化研究面临的一些挑战。此外,在基准数据集上进行实验,比较不同优化方法的性能,并提供超参数优化的实际例子。这份调查报告将帮助工业用户、数据分析师和研究人员通过有效识别适当的超参数配置来更好地开发机器学习模型。

英文摘要:

Machine learning algorithms have been used widely in various applications and areas. To fit a machine learning model into different problems, its hyper-parameters must be tuned. Selecting the best hyper-parameter configuration for machine learning models has a direct impact on the model's performance. It often requires deep knowledge of machine learning algorithms and appropriate hyper-parameter optimization techniques. Although several automatic optimization techniques exist, they have different strengths and drawbacks when applied to different types of problems. In this paper, optimizing the hyper-parameters of common machine learning models is studied. We introduce several state-of-the-art optimization techniques and discuss how to apply them to machine learning algorithms. Many available libraries and frameworks developed for hyper-parameter optimization problems are provided, and some open challenges of hyper-parameter optimization research are also discussed in this paper. Moreover, experiments are conducted on benchmark datasets to compare the performance of different optimization methods and provide practical examples of hyper-parameter optimization. This survey paper will help industrial users, data analysts, and researchers to better develop machine learning models by identifying the proper hyper-parameter configurations effectively.

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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