Mitigation of malicious attacks on networks
- C. Schneider, A. Moreira, J. S. Andrade, S. Havlin, H. Herrmann
- Computer ScienceProceedings of the National Academy of Sciences
- 22 February 2011
It is shown that with small changes in the network structure (low cost) the robustness of diverse networks can be improved dramatically whereas their functionality remains unchanged and is useful not only for improving significantly with low cost the robustity of existing infrastructures but also for designing economically robust network systems.
Searching for superspreaders of information in real-world social media
- S. Pei, Lev Muchnik, J. S. Andrade, Zhiming Zheng, H. Makse
- Computer ScienceScientific Reports
- 7 May 2014
It is found that the widely-used degree and PageRank fail in ranking users' influence and the best spreaders are consistently located in the k-core across dissimilar social platforms such as Twitter, Facebook, Livejournal and scientific publishing in the American Physical Society.
Laws of population growth
- H. Rozenfeld, D. Rybski, J. S. Andrade, M. Batty, H. Stanley, H. Makse
- EconomicsProceedings of the National Academy of Sciences
- 15 August 2008
The CCA is introduced, based on spatial distributions of the population at a fine geographic scale, defining a city beyond the scope of its administrative boundaries, and it is found that the mean growth rate of a cluster by utilizing the CCA exhibits deviations from Gibrat's law, and that the standard deviation decreases as a power law with respect to the city size.
Giant saltation on Mars
- M. P. Almeida, E. Parteli, J. S. Andrade, H. Herrmann
- Geology, PhysicsProceedings of the National Academy of Sciences
- 29 April 2008
This work calculates the motion of saltating grains by directly solving the turbulent wind field and its interaction with the particles to show that the minimal wind velocity required for saltation on Mars may be surprisingly lower than the aerodynamic minimal threshold measurable in wind tunnels.
Modeling urban growth patterns with correlated percolation
- H. Makse, J. S. Andrade, M. Batty, S. Havlin, H. Stanley
- Economics
- 30 September 1998
We propose and test a model that describes the morphology of cities, the scaling of the urban perimeter of individual cities, and the area distribution of systems of cities. The model is also…
Onion-like network topology enhances robustness against malicious attacks
- H. Herrmann, C. Schneider, A. Moreira, J. S. Andrade, S. Havlin
- Computer Science, Mathematics
- 27 January 2011
The results show that robust networks have a novel ‘onion-like’ topology consisting of a core of highly connected nodes hierarchically surrounded by rings of nodes with decreasing degree.
Wind velocity and sand transport on a barchan dune
- G. Sauermann, J. S. Andrade, L. P. Maia, U. Costa, A. D. Araújo, Hans Jürgen Herrmann
- Geology
- 5 September 2003
Large cities are less green
- E. A. Oliveira, J. S. Andrade, H. Makse
- EconomicsScientific Reports
- 30 January 2014
A superlinear scaling behavior is found between CO2 emissions and city population with average allometric exponent β = 1.46 across all cities in the US, suggesting that the high productivity of large cities is done at the expense of a proportionally larger amount of emissions compared to small cities.
Traveling time and traveling length in critical percolation clusters.
- Y. Lee, J. S. Andrade, H. Stanley
- Computer SciencePhysical review. E, Statistical physics, plasmas…
- 1 September 1999
We study traveling time and traveling length for tracer dispersion in two-dimensional bond percolation, modeling flow by tracer particles driven by a pressure difference between two points separated…
Avoiding catastrophic failure in correlated networks of networks
- S. D. S. Reis, Yan-Long Hu, H. Makse
- Computer Science
- 19 September 2014
A theory now proposes that network structure holds the key to understanding the paradox of natural networks of networks, which are surprisingly stable.
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