Discussion of 'Event history and topological data analysis'.
Discussion of 'Event history and topological data analysis'.
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DOI:
10.1093/biomet/asab023
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发表时间:
2021-12
期刊:
影响因子:
2.7
通讯作者:
Ombao H
中科院分区:
文献类型:
--
作者:
Chung MK;Ombao H
Although topological data analysis has been around for many decades with well-grounded theoretical development, it still suffers from numerous statistical and computational issues. For these reasons, it has not yet become a standard tool for data scientists. The authors point out the difficulty of directly applying existing statistical models to persistent homology due to the heterogeneous nature of topological features. The statistical development in topological data analysis in the last decade has been focused on making heterogeneous features into homogenous structured data by transformations or smoothing. Thus, the idea of applying survival analysis techniques to the birth and death process of topological features is very intriguing. The authors succeeded in elucidating the connection between event history methods and the lifetime of topological features, and the paper has stimulated many new interesting questions.
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