260 citations · 3k across the 65 of their papers we have counts for
7 papers · 1 filter
Stochastic model for the vocabulary growth in natural languages
Martin Gerlach, Eduardo G. Altmann
We propose a stochastic model for the number of different words in a given database which incorporates the dependence on the database size and historical changes. The main feature…
Stochastic perturbations in open chaotic systems: random versus noisy maps
Tamas Bodai, Eduardo G. Altmann, Antonio Endler
We investigate the effects of random perturbations on fully chaotic open systems. Perturbations can be applied to each trajectory independently (white noise) or simultaneously to a…
Leaking Chaotic Systems
Eduardo G. Altmann, Jefferson S. E. Portela, Tamás Tél
There are numerous physical situations in which a hole or leak is introduced in an otherwise closed chaotic system. The leak can have a natural origin, it can mimic measurement dev…
On the origin of long-range correlations in texts
Eduardo G. Altmann, Giampaolo Cristadoro, Mirko Degli Esposti
The complexity of human interactions with social and natural phenomena is mirrored in the way we describe our experiences through natural language. In order to retain and convey su…
Faster than expected escape for a class of fully chaotic maps
Orestis Georgiou, Carl P. Dettmann, Eduardo G. Altmann
We investigate the dependence of the escape rate on the position of a hole placed in uniformly hyperbolic systems admitting a finite Markov partition. We derive an exact periodic o…
Analysis of an information-theoretic model for communication
Ronald Dickman, Nicholas R. Moloney, Eduardo G. Altmann
We study the cost-minimization problem posed by Ferrer i Cancho and Solé in their model of communication that aimed at explaining the origin of Zipf's law [PNAS 100, 788 (2003)]. D…