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research article

Topological exploration of artificial neuronal network dynamics

Bardin, Jean-Baptiste
•
Spreemann, Gard  
•
Hess, Kathryn  
January 1, 2019
Network Neuroscience

One of the paramount challenges in neuroscience is to understand the dynamics of individual neurons and how they give rise to network dynamics when interconnected. Historically, researchers have resorted to graph theory, statistics, and statistical mechanics to describe the spatiotemporal structure of such network dynamics. Our novel approach employs tools from algebraic topology to characterize the global properties of network structure and dynamics.We propose a method based on persistent homology to automatically classify network dynamics using topological features of spaces built from various spike train distances. We investigate the efficacy of our method by simulating activity in three small artificial neural networks with different sets of parameters, giving rise to dynamics that can be classified into four regimes. We then compute three measures of spike train similarity and use persistent homology to extract topological features that are fundamentally different from those used in traditional methods. Our results show that a machine learning classifier trained on these features can accurately predict the regime of the network it was trained on and also generalize to other networks that were not presented during training. Moreover, we demonstrate that using features extracted from multiple spike train distances systematically improves the performance of our method.

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Type
research article
DOI
10.1162/netn_a_00080
Web of Science ID

WOS:000477902000006

Author(s)
Bardin, Jean-Baptiste
Spreemann, Gard  
Hess, Kathryn  
Date Issued

2019-01-01

Published in
Network Neuroscience
Volume

3

Issue

3

Start page

725

End page

743

Subjects

Neurosciences

•

Neurosciences & Neurology

•

network dynamics

•

topological data analysis

•

persistent homology

•

artificial neural network

•

spike train

•

machine learning

•

automatic seizure detection

Note

This is an open access article under the terms of the Creative Commons Attribution License

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

Available on Infoscience
August 13, 2019
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/159700
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