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arXiv 2106.15411cs.LGcs.AI
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用数据集属性解释多标签分类方法的性能

Explaining the Performance of Multi-label Classification Methods with Data Set Properties

Jožef Stefan Institute(约瑟夫·斯特凡研究所);Jožef Stefan IPSchool(约瑟夫·斯特凡知识产权学院);Faculty of Mathematics and Physics, University of Ljubljana(卢布尔雅那大学数学与物理学院);TU Berlin(柏林工业大学);Bias Variance Labs(偏差方差实验室)

Jasmin Bogatinovski, Ljupčo Todorovski, Sašo Džeroski, Dragi Kocev

摘要:

元学习概括了不同学习任务的经验,并有望为机器学习算法的行为提供重要的经验见解。在本文中,我们提出了一个全面的元学习研究的数据集和方法的多标签分类(MLC)。MLC是一个实际相关的机器学习任务,其中每个示例同时标记有多个标签。在这里,我们分析了40 MLC数据集,使用50 Meta功能描述不同属性的数据。这项研究的主要结果如下。首先,描述MLC数据集的空间的最突出的Meta特征是评估标签空间的不同方面的元特征。其次,Meta模型表明,最重要的Meta特征描述了标签空间,并且,描述标签之间关系的Meta特征往往比描述单个标签之间和内部分布的Meta特征更频繁地出现。第三,超参数的优化可以提高预测性能,然而,通常情况下,改进的程度并不总是合理的资源利用。

英文摘要:

Meta learning generalizes the empirical experience with different learning tasks and holds promise for providing important empirical insight into the behaviour of machine learning algorithms. In this paper, we present a comprehensive meta-learning study of data sets and methods for multi-label classification (MLC). MLC is a practically relevant machine learning task where each example is labelled with multiple labels simultaneously. Here, we analyze 40 MLC data sets by using 50 meta features describing different properties of the data. The main findings of this study are as follows. First, the most prominent meta features that describe the space of MLC data sets are the ones assessing different aspects of the label space. Second, the meta models show that the most important meta features describe the label space, and, the meta features describing the relationships among the labels tend to occur a bit more often than the meta features describing the distributions between and within the individual labels. Third, the optimization of the hyperparameters can improve the predictive performance, however, quite often the extent of the improvements does not always justify the resource utilization.

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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