Robust change detection for large-scale data streams
Robust change detection for large-scale data streams
复制标题
大规模数据流的稳健变化检测
DOI:
10.1080/07474946.2022.2043045
复制
发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Shi, Jianjun
中科院分区:
文献类型:
--
作者:
Zhang, Ruizhi;Mei, Yajun;Shi, Jianjun
Robust change point detection for large-scale data streams has many real-world applications in industrial quality control, signal detection, and biosurveillance. Unfortunately, it is highly nontrivial to develop efficient schemes due to three challenges: (1) the unknown sparse subset of affected data streams, (2) the unexpected outliers, and (3) computational scalability for real-time monitoring and detection. In this article, we develop a family of efficient real-time robust detection schemes for monitoring large-scale independent data streams. For each data stream, we propose to construct a new local robust detection statistic called the-CUSUM (cumulative sum) statistic that can reduce the effect of outliers by using the Box-Cox transformation of the likelihood function. Then the global scheme will raise an alarm based upon the sum of the shrinkage transformation of these local-CUSUM statistics to filter out unaffected data streams. In addition, we propose a new concept calledfalse alarm breakdown pointto measure the robustness of online monitoring schemes and propose aworst-case detection efficiency scoreto measure the detection efficiency when the data contain outliers. We then characterize the breakdown point and the efficiency score of our proposed schemes. Asymptotic analysis and numerical simulations are conducted to illustrate the robustness and efficiency of our proposed schemes.
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DOI:
10.1016/b978-0-12-386908-1.00037-9
发表时间:
2018-11
期刊:
Wiley Series in Probability and Statistics
影响因子:
--
作者:
Bruce E. Blaine
通讯作者:
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影响因子:
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作者:
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2015-01-01
影响因子:
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通讯作者:
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期刊:
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--
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通讯作者:
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DOI:
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发表时间:
2016
期刊:
arXiv: Methodology
影响因子:
--
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通讯作者:
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