A topological approach to inferring the intrinsic dimension of convex sensing data
A topological approach to inferring the intrinsic dimension of convex sensing data
复制标题
推断凸传感数据内在维度的拓扑方法
DOI:
10.1007/s41468-021-00081-3
复制
发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Itskov, Vladimir
中科院分区:
文献类型:
--
作者:
Wu, Min-Chun;Itskov, Vladimir
We consider a common measurement paradigm, where an unknown subset of an affine space is measured by unknown continuous quasi-convex functions. Given the measurement data, can one determine the dimension of this space? In this paper, we develop a method for inferring the intrinsic dimension of the data from measurements by quasi-convex functions, under natural assumptions. The dimension inference problem depends only on discrete data of the ordering of the measured points of space, induced by the sensor functions. We construct a filtration of Dowker complexes, associated to measurements by quasi-convex functions. Topological features of these complexes are then used to infer the intrinsic dimension. We prove convergence theorems that guarantee obtaining the correct intrinsic dimension in the limit of large data, under natural assumptions. We also illustrate the usability of this method in simulations.
登录
查看更多内容
影响因子:
0.8
作者:
Crawley-Boevey, William
通讯作者:
Crawley-Boevey, William
影响因子:
2.1
作者:
R. Regis
通讯作者:
R. Regis
影响因子:
1.8
作者:
Bobrowski, Omer;Kahle, Matthew;Skraba, Primoz
通讯作者:
Skraba, Primoz
DOI:
10.1007/s41468-019-00028-9
发表时间:
2018
期刊:
Journal of Applied and Computational Topology
影响因子:
--
作者:
M. Brun;N. Blaser
通讯作者:
N. Blaser