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arXiv 2102.02291cs.LGstat.ML
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基于最近邻的重要性加权

Nearest Neighbor-based Importance Weighting

University of Copenhagen(哥本哈根大学);Delft University of Technology(代尔夫特理工大学)

Marco Loog

摘要:

重要性加权通常广泛应用于机器学习中,特别是处理数据协变量偏移问题的技术中。一种新的,直接的方法来确定这样的重要性加权。它依赖于最近邻分类方案,并且实现起来相对简单。各种分类任务的比较实验表明,我们所谓的最近邻加权(NNeW)计划的有效性。考虑到其性能,我们的程序可以作为一个简单而有效的基线方法的重要性加权。

英文摘要:

Importance weighting is widely applicable in machine learning in general and in techniques dealing with data covariate shift problems in particular. A novel, direct approach to determine such importance weighting is presented. It relies on a nearest neighbor classification scheme and is relatively straightforward to implement. Comparative experiments on various classification tasks demonstrate the effectiveness of our so-called nearest neighbor weighting (NNeW) scheme. Considering its performance, our procedure can act as a simple and effective baseline method for importance weighting.

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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