Identifiability of SDEs for reaction networks

Fuente: arXiv
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Hauptverfasser: Faul, Louis, Hoessly, Linard, Xia, Panqiu
Format: Preprint
Veröffentlicht: 2025
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author Faul, Louis
Hoessly, Linard
Xia, Panqiu
author_facet Faul, Louis
Hoessly, Linard
Xia, Panqiu
contents Biochemical reaction networks are widely applied across scientific disciplines to model complex dynamic systems. We investigate the diffusion approximation of reaction networks with mass-action kinetics, focusing on the identifiability of the stochastic differential equations associated to the reaction network. We derive conditions under which the law of the diffusion approximation is identifiable and provide theorems for verifying identifiability in practice. Notably, our results show that some reaction networks have non-identifiable reaction rates, even when the law of the corresponding stochastic process is completely known. Moreover, we show that reaction networks with distinct graphical structures can generate the same diffusion law under specific choices of reaction rates. Finally, we compare our framework with identifiability results in the deterministic ODE setting and the discrete continuous-time Markov chain models for reaction networks.
format Preprint
id arxiv_https___arxiv_org_abs_2505_07638
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Identifiability of SDEs for reaction networks
Faul, Louis
Hoessly, Linard
Xia, Panqiu
Probability
Molecular Networks
60J60, 60H10, 92C42, 92C45, 92E20
Biochemical reaction networks are widely applied across scientific disciplines to model complex dynamic systems. We investigate the diffusion approximation of reaction networks with mass-action kinetics, focusing on the identifiability of the stochastic differential equations associated to the reaction network. We derive conditions under which the law of the diffusion approximation is identifiable and provide theorems for verifying identifiability in practice. Notably, our results show that some reaction networks have non-identifiable reaction rates, even when the law of the corresponding stochastic process is completely known. Moreover, we show that reaction networks with distinct graphical structures can generate the same diffusion law under specific choices of reaction rates. Finally, we compare our framework with identifiability results in the deterministic ODE setting and the discrete continuous-time Markov chain models for reaction networks.
title Identifiability of SDEs for reaction networks
topic Probability
Molecular Networks
60J60, 60H10, 92C42, 92C45, 92E20
url https://arxiv.org/abs/2505.07638