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arXiv 1906.04436cs.LGphysics.data-anstat.ML
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一种拓扑持久性学习算法

Metrics for Learning in Topological Persistence

Tampere University(坦佩雷大学);University of Cologne(科隆大学)

Henri Riihimäki, José Licón-Saláiz

摘要:

持久同源性分析提供了在各个维度上捕获数据集的连接结构的手段。在数学层面上,通过定义持久性附加到数据集的对象之间的度量,我们可以稳定表征这些对象的不变量。我们概述了如何所谓的轮廓函数诱导相关指标稳定的秩不变。在实践层面上,稳定秩被用作数据的指纹。不同的轮廓选择导致不同的稳定秩和拓扑学习的问题,然后找到最佳的轮廓。我们概述了我们的分析管道,并展示了它如何增强身体活动数据的分类。作为我们的主要应用程序,我们研究如何稳定的行列和轮廓提供强大的描述符的大气云场的空间格局。

英文摘要:

Persistent homology analysis provides means to capture the connectivity structure of data sets in various dimensions. On the mathematical level, by defining a metric between the objects that persistence attaches to data sets, we can stabilize invariants characterizing these objects. We outline how so called contour functions induce relevant metrics for stabilizing the rank invariant. On the practical level, the stable ranks are used as fingerprints for data. Different choices of contour lead to different stable ranks and the topological learning is then the question of finding the optimal contour. We outline our analysis pipeline and show how it can enhance classification of physical activities data. As our main application we study how stable ranks and contours provide robust descriptors of spatial patterns of atmospheric cloud fields.

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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