Computational Topology Techniques for Characterizing Time-Series Data
Computational Topology Techniques for Characterizing Time-Series Data
复制标题
用于表征时间序列数据的计算拓扑技术
DOI:
10.1007/978-3-319-68765-0_24
复制
发表时间:
2017
期刊:
影响因子:
--
通讯作者:
Bradley, E.
中科院分区:
文献类型:
--
作者:
Sanderson, N.;Shugerman, E;Molna, r S.;Meiss, J.D.;Bradley, E.
Topological data analysis (TDA), while abstract, allows a characterization of time-series data obtained from nonlinear and complex dynamical systems. Though it is surprising that such an abstract measure of structure—counting pieces and holes—could be useful for real-world data, TDA lets us compare different systems, and even do membership testing or change-point detection. However, TDA is computationally expensive and involves a number of free parameters. This complexity can be obviated by coarse-graining, using a construct called the witness complex. The parametric dependence gives rise to the concept of persistent homology: how shape changes with scale. Its results allow us to distinguish time-series data from different systems—e.g., the same note played on different musical instruments.
DOI:
--
发表时间:
2002
期刊:
影响因子:
--
作者:
V. Robins
通讯作者:
V. Robins
影响因子:
1.7
作者:
V. Robins;Jennifer Abernethy;N. Rooney;E. Bradley
通讯作者:
E. Bradley