INVESTIGADORES
ABRAMSON Guillermo
artículos
Título:
Random walk model to study cycles emerging from the exploration-exploitation trade-off
Autor/es:
L. D. KAZIMIERSKI; G. ABRAMSON; M. N. KUPERMAN
Revista:
PHYSICAL REVIEW E - STATISTICAL PHYSICS, PLASMAS, FLUIDS AND RELATED INTERDISCIPLINARY TOPICS
Editorial:
American Physical Society
Referencias:
Año: 2015 vol. 91 p. 121241 - 121246
ISSN:
1063-651X
Resumen:
We present a model for a random walk with memory, phenomenologically inspired in a biological system. The walker has the capacity to remember the time of the last visit to each site and the step taken from there. This memory affects the behavior of the walker each time it reaches an already visited site modulating the probability of repeating previous moves. This probability increases with the time elapsed from the last visit. A biological analog of the walker is a frugivore, with the lattice sites representing plants. The memory effect can be associated with the time needed by plants to recover its fruit load. We propose two different strategies, conservative and explorative, as well as intermediate cases, leading to nonintuitive interesting results, such as the emergence of cycles.
