Volume 81, Number 4, February 2008
Article Number 48007
Number of page(s) 6
Section Interdisciplinary Physics and Related Areas of Science and Technology
Published online 22 January 2008
EPL, 81 (2008) 48007
DOI: 10.1209/0295-5075/81/48007

Driving a network to steady states reveals its cooperative architecture

D. Yu1 and U. Parlitz2

1  College of Automation Engineering, Qingdao University - Qingdao, Shandong 266071, China
2  Drittes Physikalisches Institut, Universität Göttingen - Friedrich-Hund-Platz 1, D-37077 Göttingen, Germany

received 18 October 2007; accepted in final form 17 December 2007; published February 2008
published online 22 January 2008

For a sparsely connected and balanced network with unknown interaction delays and 1D elements, we show that driving the network to steady states can reveal its cooperative architecture, i.e., the dynamics and output functions of individual nodes and the connection topology. Our approach is robust and can be extended to (sub)networks with a small topology uncertainty. Some examples are presented to illustrate the proposed identification method.

89.75.Fb - Structures and organization in complex systems.
89.75.-k - Complex systems.
89.75.Hc - Networks and genealogical trees.

© EPLA 2008