نتایج جستجو برای: random function

تعداد نتایج: 1458231  

Journal: :Proceedings of the American Mathematical Society 1970

Journal: :Journal of Statistical Physics 2023

We consider an infinite spatial inhomogeneous random graph model with integrable connection kernel that interpolates nicely between existing models. Key examples are versions of the weight-dependent model, geometric graph, and age-based model. These models arise as local limit corresponding finite models, see \cite{LWC_SIRGs_2020}. For these we identify scaling \emph{local clustering} a functio...

Random utility models have been widely used in many diverse fields. Considering utility as a random variable opened many new analytical doors to researchers in explaining behavioral phenomena. Introducing and incorporating the random error term into the utility function had several reasons, including accounting for unobserved variables. This paper incorporates fuzziness into random utility mode...

Journal: :The Journal of the Acoustical Society of America 1974

We study the limiting distribution of the degree of a given node in a scaled attachment random recursive tree, a generalized random recursive tree, which is introduced by Devroye et. al (2011). In a scaled attachment random recursive tree, every node $i$ is attached to the node labeled $lfloor iX_i floor$ where $X_0$, $ldots$ , $X_n$ is a sequence of i.i.d. random variables, with support in [0,...

The permeability and tortuosity of pore-scale two and three-dimensional random porous media were calculated using the Lattice Boltzmann method (LBM). Effects of geometrical parameters of medium on permeability and tortuosity were investigated as well. Two major models of random porous media were reconstructed by computerized tomography method: Randomly distributed rectangular obstacles in a uni...

Journal: :مهندسی صنایع 0
ابوالفضل کاظمی استادیار دانشگاه آزاد اسلامی واحد قزوین- دانشکده صنایع و مکانیک محمدرضا ملکیان کارشناس ارشد دانشگاه آزاد اسلامی واحد قزوین- دانشکده صنایع و مکانیک کیوان صرافها کارشناس ارشد دانشگاه آزاد اسلامی واحد قزوین- باشگاه پژوهشگران جوان

inventory control problem is one of the problems in decision making and management that contains non-crisp parameters in real world. economic production quantity (epq) model in fuzzy environment has been studied so far by many researchers. one of the main assumptions in all previous researches was neglecting the inventory shortage. in this research, a new multi-item epq model with fuzzy random ...

Unobservable productivity shocks cause selection and simultaneity problems in firm’s decisions and these problems cause estimators such as ordinary least squares, have biased estimation for coefficients of production function inputs. In this study, data of five automaker companies in the period of 1383-1387 have been used and production function of car industry have been estimated by ordinary l...

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