Separating internal and external dynamics of complex systems.

@article{Menezes2004SeparatingIA,
  title={Separating internal and external dynamics of complex systems.},
  author={M Argollo de Menezes and Albert-L{\'a}szl{\'o} Barab{\'a}si},
  journal={Physical review letters},
  year={2004},
  volume={93 6},
  pages={068701}
}
The observable behavior of a complex system reflects the mechanisms governing the internal interactions between the system's components and the effect of external perturbations. Here we show that by capturing the simultaneous activity of several of the system's components we can separate the internal dynamics from the external fluctuations. The method allows us to systematically determine the origin of fluctuations in various real systems, finding that while the Internet and the computer chip… CONTINUE READING

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