نتایج جستجو برای: stochastic model

تعداد نتایج: 2181024  

Journal: :journal of industrial engineering, international 2006
s.s hashemin s.m.t fatemi ghomi

this paper discusses the problem of allocation of constrained renewable resource to splittable activities of a single project. if the activities of stochastic projects can be split, these projects may be completed in shorter time when the available resource is constrained. it is assumed that the resource amount required to accom-plish each activity is a discrete quantity and deterministic. the ...

A memory control for T-S fuzzy discrete-time systems with sto- chastic input delay is proposed in this paper. Dierent from the common assumptions on the time delay in the existing literatures, it is assumed in this paper that the delays vary randomly and satisfy some probabilistic dis- tribution. A new state space model of the discrete-time T-S fuzzy system is derived by introducing some stocha...

The emergence of corona virus (COVID-19) has create a great public concern as the outbreak is still ongoing and government are taking actions such as holiday extension, travel restriction, temporary closure of public work place, borders, schools, quarantine/isolation, social distancing and so on. To mitigate the spread, we proposed and analyzed a stochastic model for the continue spread of coro...

1976
Robert C. MERTON

The validity of the classic Black-Scholes option pricing formula dcpcnds on the capability of investors to follow a dynamic portfolio strategy in the stock that replicates the payoff structure to the option. The critical assumption required for such a strategy to be feasible, is that the underlying stock return dynamics can be described by a stochastic process with a continuous sample path. In ...

1997
Helmut Pruscha

We are dealing with regression models for point processes having a multiplicative intensity process of the form (t) b t. The deterministic function describes the long-term trend of the process. The stochastic process b accounts for the short-term random variations and depends on a nite-dimensional parameter. The semiparametric estimation procedure is based on one single observation over a long ...

Journal: :iranian journal of science and technology (sciences) 2013
r. farnoosh

the stochastic models for ship heave motion in irregular sea waves based on white and colored noises are examined. for this purpose the deterministic model transfers to stochastic models by adding different noise terms in force and then these models are solved analytically and numerically. finally an investigation is undertaken to examine the parameter estimation problem of second order stochas...

Journal: :Fuzzy Sets and Systems 2012
Enrique de Amo Manuel Díaz Carrillo Juan Fernández-Sánchez

We introduce a constructive method, by using a doubly stochastic measure, to describe all the copulas that, in view of Sklar’s Theorem, are able to connect a bivariate distribution to its marginals. We use this to give the lower and upper optimal bounds for all the copulas that extend a given subcopula.

2003
PETER J. BICKEL THOMAS M. STOKER T. M. STOKER

We introduce a new framework for constructing tests of a general semiparametric hypotheses which (i) have non-trivial power on the n−1/2 scale in every direction. (ii) can be tailored to put substantial power on alternatives of importance. The approach is based on combining test statistics based on stochastic processes of score statistics with bootstrap critical values.

2017
B.MANSOURI H.OUERDIANE I.SALHI

In this paper, we use the Yoshida approximation to prove the existence and uniqueness of a solution for the backward doubly stochastic differential equation when the generator is monotone and continuous. Before that we present the results for existence and uniqueness of an adapted solution of the backward doubly stochastic differential equation under some generals conditions.

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