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arXiv 1702.02643math.STstat.TH
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具有统计差错控制的聚类

Clustering with Statistical Error Control

Michael Vogt, Matthias Schmid

摘要:

本文提出了一种聚类方法,允许严格的统计差错控制类似于统计测试。我们开发的集群和集群本身的未知数的估计。估计量依赖于一个调整参数α,它类似于统计假设检验的显着性水平。通过选择alpha,可以控制高估簇的真实数量的概率,而低估的概率是渐近可忽略的。此外,估计的聚类不同于真实聚类的概率被控制。在理论部分的文件,这些报表的正式版本的统计差错控制推导出一个标准的模型设置凸集群。模拟研究和两个应用程序的温度和基因表达微阵列数据补充了理论分析。

英文摘要:

This paper presents a clustering approach that allows for rigorous statistical error control similar to a statistical test. We develop estimators for both the unknown number of clusters and the clusters themselves. The estimators depend on a tuning parameter alpha which is similar to the significance level of a statistical hypothesis test. By choosing alpha, one can control the probability of overestimating the true number of clusters, while the probability of underestimation is asymptotically negligible. In addition, the probability that the estimated clusters differ from the true ones is controlled. In the theoretical part of the paper, formal versions of these statements on statistical error control are derived in a standard model setting with convex clusters. A simulation study and two applications to temperature and gene expression microarray data complement the theoretical analysis.

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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