arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2201.00207cs.LG
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AutoDES:AutoML流水线生成分类与动态包围策略选择

AutoDES: AutoML Pipeline Generation of Classification with Dynamic Ensemble Strategy Selection

Institute of Computing Technology, Chinese Academy of Sciences(中国科学院计算技术研究所)

Yunpu Zhao, Rui Zhang, Xiaqing Li

摘要:

近年来,自动化机器学习取得了显著的技术发展,构建自动化机器学习管道现在是一项重要任务。模型集成是将多个模型组合起来以获得更好和更鲁棒的模型的技术。然而,现有的自动化机器学习在处理模型集成时往往过于简单,其中集成策略是固定的,例如堆叠泛化。不同的集成方法,特别是集成选择,已经有很多技术,固定的集成策略限制了模型性能的上限。在这篇文章中,我们提出了一个新的自动化机器学习框架。我们的框架结合了动态集成选择的进步,据我们所知,我们的方法是AutoML领域第一个搜索和优化集成策略的方法。在对比实验中,我们的方法在OpenML平台的42个分类数据集上的性能优于最先进的自动化机器学习框架,具有相同的CPU时间。在我们的框架上进行的烧蚀实验验证了我们所提出的方法的有效性。

英文摘要:

Automating machine learning has achieved remarkable technological developments in recent years, and building an automated machine learning pipeline is now an essential task. The model ensemble is the technique of combining multiple models to get a better and more robust model. However, existing automated machine learning tends to be simplistic in handling the model ensemble, where the ensemble strategy is fixed, such as stacked generalization. There have been many techniques on different ensemble methods, especially ensemble selection, and the fixed ensemble strategy limits the upper limit of the model's performance. In this article, we present a novel framework for automated machine learning. Our framework incorporates advances in dynamic ensemble selection, and to our best knowledge, our approach is the first in the field of AutoML to search and optimize ensemble strategies. In the comparison experiments, our method outperforms the state-of-the-art automated machine learning frameworks with the same CPU time in 42 classification datasets from the OpenML platform. Ablation experiments on our framework validate the effectiveness of our proposed method.

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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