نتایج جستجو برای: stochastic optimization

تعداد نتایج: 429961  

Journal: :IEEE Access 2021

It is well known that the stochastic optimization problem can be regarded as one of most hard problems since, in cases, values f and its gradient are often not easily to solved, or F(∙, ξ) normally given clearly (or) distribution function P equivocal. Then an effective algorithm successfully designed used solve this interesting work. This paper designs bigger subspace algorithms for solving non...

Journal: Geopersia 2017

In this paper, 2D seismic data and petrophysical logs of the Pabdeh Formation from four wells of the Mansuri oil field are utilized. ΔLog R method was used to generate a continuous TOC log from petrophysical data. The calculated TOC values by ΔLog R method, used for a multi-attribute seismic analysis. In this study, seismic inversion was performed based on neural networks algorithm and the resu...

 Numerous problems in engineering and science can be converted into optimization problems. Artificial bee colony (ABC) algorithm is a newly developed stochastic optimization algorithm and has been widely used in many areas. However, due to the stochastic characteristics of its solution search equation, the traditional ABC algorithm often suffers from poor exploitation. Aiming at this weakness o...

Journal: :international journal of industrial engineering and productional research- 0
masoud mahootchi 424 hafez aven, tehran, iranue taher ahmadi 424 hafez avenue, tehran, iran kumaraswamy ponnambalam 200 university avenue, waterloo, canada

this paper presents a new formulation for warehouse inventory management in a stochastic situation. the primary source of this formulation is derived from fp model, which has been proposed by fletcher and ponnambalam for reservoir management. the new proposed mathematical model is based on the first and the second moments of storage as a stochastic variable. using this model, the expected value...

‎In the present paper‎, ‎optimal heating of temperature field which is modelled as a boundary optimal control problem‎, ‎is investigated in the uncertain environments and then it is solved numerically‎. ‎In physical modelling‎, ‎a partial differential equation with stochastic input and stochastic parameter are applied as the constraint of the optimal control problem‎. ‎Controls are implemented ...

2004
James C. Spall

General Background . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 Formal Problem Statement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171 Contrast of Stochastic and Deterministic Optimization . ...

K.S. Lee, S.W. Han, Z.W. Geem,

Many methods have been developed for structural size and configuration optimization in which cross-sectional areas are usually assumed to be continuous. In most practical structural engineering design problems, however, the design variables are discrete. This paper proposes two efficient structural optimization methods based on the harmony search (HS) heuristic algorithm that treat both discret...

2000
Anton J. Kleywegt Alexander Shapiro

Contents 1 Introduction 1 2 Optimization under Uncertainty 1 2.

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