Results 21 to 30 of about 128,421 (254)

Cluster Persistence for Weighted Graphs

open access: yesEntropy, 2023
Persistent homology is a natural tool for probing the topological characteristics of weighted graphs, essentially focusing on their 0-dimensional homology.
Omer Bobrowski, Primoz Skraba
doaj   +1 more source

Hypothesis testing for topological data analysis [PDF]

open access: yesJournal of Applied and Computational Topology, 2017
14 pages, 5 figures, 1 ...
Andrew Robinson, Katharine Turner
openaire   +2 more sources

Topological data analysis for revealing dynamic brain reconfiguration in MEG data [PDF]

open access: yesPeerJ, 2023
In recent years, the focus of the functional connectivity community has shifted from stationary approaches to the ones that include temporal dynamics. Especially, non-invasive electrophysiological data (magnetoencephalography/electroencephalography (MEG ...
Ali Nabi Duman, Ahmet E. Tatar
doaj   +2 more sources

Topological data analysis of biological aggregation models. [PDF]

open access: yesPLoS ONE, 2015
We apply tools from topological data analysis to two mathematical models inspired by biological aggregations such as bird flocks, fish schools, and insect swarms.
Chad M Topaz   +2 more
doaj   +1 more source

Topological Data Analysis and Clustering

open access: yes, 2023
This article is intended to be a chapter for a ...
openaire   +2 more sources

Topological data analysis and cosheaves [PDF]

open access: yesJapan Journal of Industrial and Applied Mathematics, 2015
version 2 has 30 pages, 18 figures; 25 pages, 17 figures, submitted to the Japan Journal of Industrial and Applied ...
openaire   +2 more sources

Neighborhood hypergraph model for topological data analysis

open access: yesComputational and Mathematical Biophysics, 2022
Hypergraph, as a generalization of the notions of graph and simplicial complex, has gained a lot of attention in many fields. It is a relatively new mathematical model to describe the high-dimensional structure and geometric shapes of data sets.
Liu Jian, Chen Dong, Li Jingyan, Wu Jie
doaj   +1 more source

Empowering Advanced Driver-Assistance Systems from Topological Data Analysis

open access: yesMathematics, 2021
We are interested in evaluating the state of drivers to determine whether they are attentive to the road or not by using motion sensor data collected from car driving experiments.
Tarek Frahi   +7 more
doaj   +1 more source

Topological data analysis [PDF]

open access: yesNature Photonics, 2018
Topological data analysis (TDA) can broadly be described as a collection of data analysis methods that find structure in data. These methods include clustering, manifold estimation, nonlinear dimension reduction, mode estimation, ridge estimation and persistent homology. This paper reviews some of these methods.
openaire   +3 more sources

Identifying homogeneous subgroups of patients and important features: a topological machine learning approach

open access: yesBMC Bioinformatics, 2021
Background This paper exploits recent developments in topological data analysis to present a pipeline for clustering based on Mapper, an algorithm that reduces complex data into a one-dimensional graph.
Ewan Carr   +4 more
doaj   +1 more source

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