Results 21 to 30 of about 913,345 (341)

Self-Similarity in Population Dynamics: Surname Distributions and Genealogical Trees

open access: yesEntropy, 2015
The frequency distribution of surnames turns out to be a relevant issue not only in historical demography but also in population biology, and especially in genetics, since surnames tend to behave like neutral genes and propagate like Y chromosomes.
Paolo Rossi
doaj   +1 more source

CALCULATION OF WEIGHT COEFFICIENTS IN CONTINUOUS PARTICLE FILTER

open access: yesНаучный вестник МГТУ ГА, 2018
This article shows the relationship between filters based on modeling of the random process paths with terminating and branching and a continuous particle filter that are related to sequential Monte Carlo methods.
K. A. Rybakov
doaj   +1 more source

Limiting Behaviors of Stochastic Spread Models Using Branching Processes

open access: yesAxioms, 2023
In this paper, we introduce a spread model using multi-type branching processes to investigate the evolution of the population during a pandemic in which individuals are classified into different types.
Jyy-I Hong
doaj   +1 more source

A full lifespan model of vertebrate lens growth [PDF]

open access: yesRoyal Society Open Science, 2017
The mathematical determinants of vertebrate organ growth have yet to be elucidated fully. Here, we utilized empirical measurements and a dynamic branching process-based model to examine the growth of a simple organ system, the mouse lens, from E14.5 ...
Hrvoje Šikić   +3 more
doaj   +1 more source

Estimating the risk of re-emergence after stopping polio vaccination

open access: yesFrontiers in Microbiology, 2012
Live vaccination against polio has effectively prevented outbreaks in most developed countries for more than 40 years, and there remain only a few countries where outbreaks of poliomyelitis by the wild strain still threaten the community.
Akira eSasaki   +3 more
doaj   +1 more source

Intermittency in branching processes [PDF]

open access: yesZeitschrift für Physik C Particles and Fields, 1994
20 pages, UCLA93/TEP ...
openaire   +3 more sources

The branching process with logistic growth [PDF]

open access: yes, 2005
In order to model random density-dependence in population dynamics, we construct the random analogue of the well-known logistic process in the branching process' framework.
Lambert, Amaury
core   +1 more source

A Predator–Prey Two-Sex Branching Process

open access: yesMathematics, 2020
In this paper, we present the first stochastic process to describe the interaction of predator and prey populations with sexual reproduction. Specifically, we introduce a two-type two-sex controlled branching model.
Cristina Gutiérrez, Carmen Minuesa
doaj   +1 more source

Simply generated trees, conditioned Galton―Watson trees, random allocations and condensation: Extended abstract [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2012
We give a unified treatment of the limit, as the size tends to infinity, of random simply generated trees, including both the well-known result in the standard case of critical Galton-Watson trees and similar but less well-known results in the other ...
Svante Janson
doaj   +1 more source

The Height of List-tries and TST [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2007
We characterize the asymptotics of heights of the trees of de la Briandais and the ternary search trees (TST) of Bentley and Sedgewick. Our proof is based on a new analysis of the structure of tries that distinguishes the bulk of the tree, called the ...
N. Broutin, L. Devroye
doaj   +1 more source

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