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- Title
Controlling Networks of Nonlinearly-Coupled Nodes using Response Surfaces.
- Authors
Shulman, Jason; Malatino, Franck; Mo, Alexander; Ryan, Killian; Gunaratne, Gemunu H.
- Abstract
Control of complex processes is a major goal of network analyses. Most approaches to control nonlinearly coupled systems require the network topology and/or network dynamics. Unfortunately, neither the full set of participating nodes nor the network topology is known for many important systems. On the other hand, system responses to perturbations are often easily measured. We show how the collection of such responses -a response surface- can be used for network control. Analyses of model systems show that response surfaces are smooth and hence can be approximated using low order polynomials. Importantly, these approximations are largely insensitive to stochastic fluctuations in data or measurement errors. They can be used to compute how a small set of nodes need to be altered in order to direct the network close to a pre-specified target state. These ideas, illustrated on a nonlinear electrical circuit, can prove useful in many contexts including in reprogramming cellular states.
- Subjects
NONLINEAR electric circuits; COUPLED mode theory (Wave-motion); ELECTRIC network topology; WIRELESS sensor nodes; RESPONSE surfaces (Statistics); POLYNOMIALS; MEASUREMENT errors
- Publication
Scientific Reports, 2014, p1
- ISSN
2045-2322
- Publication type
Article
- DOI
10.1038/srep07574