Zobrazeno 1 - 10
of 151
pro vyhledávání: '"Penna, T. A."'
Symbolic regression is a machine learning technique, and it has seen many advancements in recent years, especially in genetic programming approaches (GPSR). Furthermore, it has been known for many years that constant optimization of parameters, durin
Externí odkaz:
http://arxiv.org/abs/2412.02126
We investigate the impact of the Tsallis non extensive statistics introduced by intrinsic temperature fluctuations in p-Air ultra high energy interactions on observables of cosmic ray showers, such as the slant depth of the maximum Xmax and the muon
Externí odkaz:
http://arxiv.org/abs/1606.03923
There has been considerable efforts to understand the underlying complex dynamics in physiological time series. Methods originated from statistical physics revealed a non-Gaussian statistics and long range correlations in those signals. This suggests
Externí odkaz:
http://arxiv.org/abs/1603.00397
In this work we make a numerical study of the dynamic universality class of the Niedermayer algorithm applied to the two-dimensional Potts model with 2, 3, and 4 states. This algorithm updates clusters of spins and has a free parameter, $E_0$, which
Externí odkaz:
http://arxiv.org/abs/1204.4353
The standard Penna ageing model with sexual reproduction is enlarged by adding additional bit-strings for love: Marriage happens only if the male love strings are sufficiently different from the female ones. We simulate at what level of required diff
Externí odkaz:
http://arxiv.org/abs/1008.3246
We use detrended fluctuation analysis (DFA) to study the dynamics of blood pressure oscillations and its feedback control in rats by analyzing systolic pressure time series before and after a surgical procedure that interrupts its control loop. We fo
Externí odkaz:
http://arxiv.org/abs/0908.3614
The Harris-Todaro model of the rural-urban migration process is revisited under an agent-based approach. The migration of the workers is interpreted as a process of social learning by imitation, formalized by a computational model. By simulating this
Externí odkaz:
http://arxiv.org/abs/physics/0510248
The rural-urban migration phenomenon is analyzed by using an agent-based computational model. Agents are placed on lattices which dimensions varying from d=2 up to d=7. The localization of the agents in the lattice define their social neighborhood (r
Externí odkaz:
http://arxiv.org/abs/physics/0506076
In this paper we analyze the rural-urban migration phenomena as it is usually observed in economies which are in the early stages of industrialization. The analysis is conducted by means of a statistical mechanics approach which builds a computationa
Externí odkaz:
http://arxiv.org/abs/physics/0506021
Autor:
de Oliveira, P. M. C., Penna, T. J. P., Lima, A. R., Martins, J. S. Sá, Moukarzel, C., Leite, C. A. F.
Publikováno v:
Trends in Statistical Physics (2001)
We follow the dynamic evolution of a cluster of Ising spins pointing up surrounded by other spins pointing down, on a lattice. The cluster represents a liquid drop. Under a microscopic point of view, the short range ferromagnetic coupling between the
Externí odkaz:
http://arxiv.org/abs/cond-mat/0101184