Results 31 to 40 of about 159,216 (306)

Viral Marketing Branching Processes

open access: yesSSRN Electronic Journal, 2022
We consider the inherent timeline structure of the appearance of content in online social networks (OSNs) while studying content propagation. We model the propagation of a post/content of interest by an appropriate multi-type branching process. The branching process allows one to predict the emergence of global macro properties (e.g., the spread of a ...
Ranbir Dhounchak   +2 more
openaire   +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

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

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

Non-Elementary Complexities for Branching VASS, MELL, and Extensions [PDF]

open access: yes, 2014
We study the complexity of reachability problems on branching extensions of vector addition systems, which allows us to derive new non-elementary complexity bounds for fragments and variants of propositional linear logic.
Ranko Lazic   +3 more
core   +2 more sources

On Neutron Branching Processes

open access: yesPublications of the Research Institute for Mathematical Sciences, 1971
A statistical theory of the neutron transport process has been discussed by Harris [[I] and Mullikin Q7J. They considered the neutron population by generation rather than in real time and formulate them as a discretetime branching process. In this paper, we will formulate the neutron transport process as a continuous time branching process and study ...
Mori, Takakazu   +2 more
openaire   +3 more sources

A Branching Process for Virus Survival [PDF]

open access: yesJournal of Applied Probability, 2012
Quasispecies theory predicts that there is a critical mutation probability above which a viral population will go extinct. Above this threshold the virus loses the ability to replicate the best-adapted genotype, leading to a population composed of low replicating mutants that is eventually doomed.
Cox, J. Theodore, Schinazi, Rinaldo B
openaire   +4 more sources

The Lung Vasculature: A Driver or Passenger in Lung Branching Morphogenesis?

open access: yesFrontiers in Cell and Developmental Biology, 2021
Multiple cellular, biochemical, and physical factors converge to coordinate organogenesis. During embryonic development, several organs such as the lung, salivary glands, mammary glands, and kidneys undergo rapid, but intricate, iterative branching. This
Yelda Pakize Kina   +3 more
doaj   +1 more source

Branching Processes

open access: yesThe Annals of Mathematical Statistics, 1948
This paper is concerned with a simple mathematical model for a branching stochastic process. Using the language of family trees we may illustrate the process as follows. The probability that a man has exactly $r$ sons is $p_r, r = 0, 1, 2, \cdots$. Each of his sons (who together make up the first generation) has the same probabilities of having a given
openaire   +3 more sources

Intermittency in branching processes [PDF]

open access: yesZeitschrift für Physik C Particles and Fields, 1994
20 pages, UCLA93/TEP ...
openaire   +2 more sources

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