Results 11 to 20 of about 1,128,212 (150)

A phase type survival tree model for clustering patients’ hospital length of stay [PDF]

open access: yes, 2009
Clinical investigators, health professionals and managers are often interested in developing criteria for clustering patients into clinically meaningful groups according to their expected length of stay.
Garg, Lalit   +4 more
core  

Stochastic Models of Exotic Transport

open access: yes, 2000
Non-typical transport phenomena may arise when randomly driven particles remain in an active relationship with the environment instead of being passive. If we attribute to Brownian particles an ability to induce alterations of the environment on suitable
Garbaczewski, Piotr
core   +1 more source

Fluctuations as stochastic deformation [PDF]

open access: yes, 2008
A notion of stochastic deformation is introduced and the corresponding algebraic deformation procedure is developed. This procedure is analogous to the deformation of an algebra of observables like deformation quantization, but for an imaginary ...
Kazinski, P. O.
core   +1 more source

Aggregation of stochastic models [PDF]

open access: yes, 2007
Dstl examines battle simulations based on stochastic evolution codes. One such code, known as SIMBAT (SIMple BATtle program) models the evolution of the battle as a sequence of turns in which the two sets of combating units move in a landscape. The units
Hjorth, Poul
core  

Stochastic firing rate models [PDF]

open access: yes, 2010
We review a recent approach to the mean-field limits in neural networks that takes into account the stochastic nature of input current and the uncertainty in synaptic coupling. This approach was proved to be a rigorous limit of the network equations in a
Cessac, Bruno   +3 more
core   +1 more source

Stochastic models of population extinction

open access: yes, 2010
Theoretical ecologists have long sought to understand how the persistence of populations depends on biotic and abiotic factors. Classical work showed that demographic stochasticity causes the mean time to extinction to increase exponentially with ...
Meerson, Baruch, Ovaskainen, Otso
core   +1 more source

EQUIVALENCES BETWEEN STOCHASTIC SYSTEMS

open access: yes, 1995
Time-dependent correlation functions of (unstable) particles undergoing biased or unbiased diffusion, coagulation and annihilation are calculated. This is achieved by similarity transformations between different stochastic models and between stochastic ...
ben-Avraham D   +18 more
core   +2 more sources

Stochastic modelling [PDF]

open access: yesProceedings of the workshop on Data-driven methods in machine translation -, 2001
This paper gives an overview of the stochastic modelling approach to machine translation. Starting with the Bayes decision rule as in pattern classification and speech recognition, we show how the resulting system architecture can be structured into three parts: the language model probability, the string translation model probability and the search ...
openaire   +1 more source

Stochastic epidemic models: a survey [PDF]

open access: yes, 2009
This paper is a survey paper on stochastic epidemic models. A simple stochastic epidemic model is defined and exact and asymptotic model properties (relying on a large community) are presented.
Britton, Tom
core  

Critical scaling of stochastic epidemic models

open access: yes, 2007
In the simple mean-field SIS and SIR epidemic models, infection is transmitted from infectious to susceptible members of a finite population by independent $p-$coin tosses.
Lalley, Steven P.
core   +2 more sources

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