4 papers · 1 filter
Fitness Estimation for Genetic Evolution of Bacterial Populations
Sergey S. Sarkisov, Ilya Timofeyev, Robert Azencott
In this paper we develop and test algorithmic techniques to estimate genotypes fitnesses by analysis of observed daily frequency data monitoring the long-term evolution of bacteria…
Asynchronous stochastic price pump
Misha Perepelitsa, Ilya Timofeyev
We propose a model for equity trading in a population of agents where each agent acts to achieve his or her target stock-to-bond ratio, and, as a feedback mechanism, follows a mark…
Stochastic subgrid-scale parameterization for one-dimensional shallow water dynamics using stochastic mode reduction
Matthias Zacharuk, Stamen I. Dolaptchiev, Ulrich Achatz +1
We address the question of parameterizing the subgrid scales in simulations of geophysical flows by applying stochastic mode reduction to the one-dimensional stochastically forced…
Stochastic and Coarse-Grained Two-Dimensional Modeling of Directional Particle Movement
William Ott, Ilya Timofeyev, Thomas Weber
We study the evolution of interacting groups of agents in two-dimensional geometries. We introduce a microscopic stochastic model that includes floor fields modeling the global flo…