Zobrazeno 1 - 10
of 164
pro vyhledávání: '"Brigatti E"'
Autor:
Brigatti, E., Azaele, S.
Logarithmic growth-rates are fundamental observables for describing ecological systems and the characterization of their distributions with analytical techniques can greatly improve their comprehension. Here a neutral model based on a stochastic diff
Externí odkaz:
http://arxiv.org/abs/2311.10624
Autor:
Brigatti, E., Filho, F. N. M. de Sousa
Publikováno v:
Physical Review Letters 129, 029801 (2022)
In a recent Letter [1] a framework for estimating entropy was introduced and applied to one-dimensional and two-dimensional systems. In this Comment we show that the method is not well suited for estimating entropy in bidimensional systems presenting
Externí odkaz:
http://arxiv.org/abs/2207.06868
Publikováno v:
Physical Review E 105, 054116 (2022)
We investigate the performance of entropy estimation methods, based either on block entropies or compression approaches, in the case of bidimensional sequences. We introduce a validation dataset made of images produced by a large number of different
Externí odkaz:
http://arxiv.org/abs/2207.02672
Publikováno v:
EPB: Urban Analytics and City Science 2023, Vol. 50, 146-161
In this work, we develop a general method for estimating the Shannon entropy of a bidimensional sequence based on the extrapolation of block entropies. We apply this method to analyse the spatial configurations of cities of different cultures and reg
Externí odkaz:
http://arxiv.org/abs/2108.05550
Publikováno v:
Brazilian Journal of Physics (2021) 51, 576-586
In this paper, we explore some stylized facts of the Bitcoin market using the BTC-USD exchange rate time series of historical intraday data from 2013 to 2020. Bitcoin presents some very peculiar idiosyncrasies, like the absence of macroeconomic funda
Externí odkaz:
http://arxiv.org/abs/2004.05870
Autor:
Neto, Minos A., Brigatti, E.
Publikováno v:
Phys. Rev. E 101, 022112 (2020)
We explore the effects that quenched disorder has on discontinuous nonequilibrium phase transitions into absorbing states. We focus our analysis on the Naming Game model, a nonequilibrium low-dimensional system with different absorbing states. The re
Externí odkaz:
http://arxiv.org/abs/1911.07294
Autor:
Calvão, A. M., Brigatti, E.
Publikováno v:
Physica A 520, 450-457, (2019)
We perform a numerical analysis of a recent introduced model for describing collective movement in alarmed animals groups. This model, derived from a position-based interaction and a limited attention field, displays a non-equilibrium phase transitio
Externí odkaz:
http://arxiv.org/abs/1903.02644
Publikováno v:
Scientific Reports, 9, 2737 (2019)
We investigate the movement patterns of three different Neotropical marsupials in an unfamiliar and risky environment. Animals are released in a matrix from which they try to reach a patch of forest. Their movements, performed on a small spacial scal
Externí odkaz:
http://arxiv.org/abs/1903.00085
Autor:
Brigatti, E., Hernández, A.
Publikováno v:
Physica A 496 (2018) 474-480
We investigate the emergence of self-organised trails between two specific target areas in collective motion of social organisms by means of an agent-based model. We present numerical evidences that an increase in the efficiency of navigation in depe
Externí odkaz:
http://arxiv.org/abs/1705.04182
Autor:
Brigatti, E., Vieira, M. V., Kajin, M., Almeida, P. J. A. L., de Menezes, M. A., Cerqueira, R.
Publikováno v:
Sci. Rep. 6, 19553 (2016)
We study the population size time series of a Neotropical small mammal with the intent of detecting and modelling population regulation processes generated by density-dependent factors and their possible delayed effects. The application of analysis t
Externí odkaz:
http://arxiv.org/abs/1702.05129