Title
Propagation of spiking moments in linear Hawkes networks
Abstract
The present paper provides exact mathematical expressions for the high-order moments of spiking activity in a recurrently connected network of linear Hawkes processes. It extends previous studies that have explored the case of a (linear) Hawkes network driven by deterministic intensity functions to the case of a stimulation by external inputs (rate functions or spike trains) with arbitrary correlation structure. Our approach describes the spatio-temporal filtering induced by the afferent and recurrent connectivities (with arbitrary synaptic response kernels) using operators acting on the input moments. This algebraic viewpoint provides intuition about how the network ingredients shape the input-output mapping for moments, as well as cumulants. We also show using numerical simulation that our results hold for neurons with refractoriness implemented by self-inhibition, provided the corresponding negative feedback for each neuron only mildly alters its mean firing probability.
Year
DOI
Venue
2020
10.1137/18M1220030
SIAM JOURNAL ON APPLIED DYNAMICAL SYSTEMS
Keywords
DocType
Volume
Hawkes process,moments,cumulants,recurrent neural network,spiking statistics
Journal
19
Issue
ISSN
Citations 
2
1536-0040
0
PageRank 
References 
Authors
0.34
0
2
Name
Order
Citations
PageRank
Gilson Matthieu100.34
Jean-pascal Pfister215013.64