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- A L Barabási, H Jeong, Z Néda, E Ravasz, A Schubert, T Vicsek
- 2008

The co-authorship network of scientists represents a prototype of complex evolving networks. In addition, it offers one of the most extensive database to date on social networks. By mapping the electronic database containing all relevant journals in mathematics and neuro-science for an eight-year period (1991-98), we infer the dynamic and the structural… (More)

Poisson Voronoi diagrams are useful for modeling and describing various natural patterns and for generating random lattices. Although this particular space tes-sellation is intensively studied by mathematicians, in two-and three dimensional spaces there is no exact result known for the size-distribution of Voronoi cells. Motivated by the simple form of the… (More)

- Z Néda, E Ravasz, Y Brechet, T Vicsek, A L Barabási
- Nature
- 2000

- I. Farkas, I. Derenyi, +6 authors T. Vicsek
- 2002

We analyse growing networks ranging from collaboration graphs of scientists to the network of similarities defined among the various transcriptional profiles of living cells. For the explicit demonstration of the scale-free nature and hierarchical organization of these graphs, a deterministic construction is also used. We demonstrate the use of determining… (More)

- Z Néda, E Ravasz, T Vicsek, Y Brechet, A L Barabási
- Physical review. E, Statistical physics, plasmas…
- 2000

We report on a series of measurements aimed to characterize the development and the dynamics of the rhythmic applause in concert halls. Our results demonstrate that while this process shares many characteristics of other systems that are known to synchronize, it also has features that are unexpected and unaccounted for in many other systems. In particular,… (More)

- Filippo Simini, Amos Maritan, Zoltán Néda
- PloS one
- 2013

Human mobility is investigated using a continuum approach that allows to calculate the probability to observe a trip to any arbitrary region, and the fluxes between any two regions. The considered description offers a general and unified framework, in which previously proposed mobility models like the gravity model, the intervening opportunities model, and… (More)

A model based on first-degree family relations network is used to describe the wealth distribution in societies. The network structure is not a priori introduced in the model, it is generated in parallel with the wealth values through simple and realistic dynamical rules. The model has two main parameters, governing the wealth exchange in the network.… (More)

The distribution of wealth in the Hungarian medieval aristocratic society is reported and studied. The number of serf families belonging to a noble is taken as a measure of the corresponding wealth. Our results reveal the power-law nature of this distribution function, confirming the validity of the Pareto law for such a society. The obtained Pareto index α… (More)

- Mária Ercsey-Ravasz, Tamás Roska, Zoltán Néda
- 2008 11th International Workshop on Cellular…
- 2008

We prove, that a CNN in which the parameters of all cells can be separately controlled, is the analog correspondent of a two-dimensional Ising type (Edwards-Anderson) spin-glass system. Using the properties of CNN we show that one single operation (template) always yields a local minimum of the spin-glass energy function. This way a very fast optimization… (More)

- Zoltán Néda
- 1994

We study by Monte Carlo techniques the evolution of finite two-dimensional Ising systems in oscillating magnetic fields. The phenomenon of stochastic resonance is observed. The characteristic peak obtained for the correlation function between the external field and magnetization, versus the temperature of the system, is studied for various external fields… (More)