نتایج جستجو برای: Ordinary moment

تعداد نتایج: 108884  

Journal: :desert 2012
a.r. keshtkar a. salajegheh m. najafi hajivar

statistical frequency analysis is the most common procedure for the analysis of flood data at a gauged location thatin first step it is needed to select a model to represent the population. among them, the central moment has been themost common and widely used, and with the using of computers, the application of the maximum likelihood hasincreased. this research was carried out in order to reco...

Journal: :desert 0
a.r. keshtkar assistant professor, international desert research center (idrc), university of tehran, tehran, iran a. salajegheh associate professor, faculty of natural resources, university of tehran, karaj, iran m. najafi hajivar msc. graduate, natural resources and watershed management office, koohrang, iran

statistical frequency analysis is the most common procedure for the analysis of flood data at a gauged location thatin first step it is needed to select a model to represent the population. among them, the central moment has been themost common and widely used, and with the using of computers, the application of the maximum likelihood hasincreased. this research was carried out in order to reco...

Journal: Desert 2012
A. Salajegheh A.R. Keshtkar M. Najafi Hajivar

Statistical frequency analysis is the most common procedure for the analysis of flood data at a gauged location thatin first step it is needed to select a model to represent the population. Among them, the central moment has been themost common and widely used, and with the using of computers, the application of the maximum likelihood hasincreased. This research was carried out in order to reco...

‎Bucket recursive trees are an interesting and natural‎ ‎generalization of ordinary recursive trees and have a connection‎ to mathematical chemistry‎. ‎In this paper‎, ‎we give the lower and upper bounds for the moment generating‎ ‎function and moments of the multiplicative Zagreb indices in a‎ ‎randomly chosen bucket recursive tree of size $n$ with maximal bucket size $bgeq1$‎. Also, ‎we consi...

غلامی, عباس,

     Due to the extent of Iran and the variety of climates in different area with variation of precipitation cause urgency obtaining to new methods for flood calculations. For this purpose necessary, efficient of new method assessment in compare of current method in different area of Iran until if suitable fitness for different region, used to calculation of flood. Two current methods for calcu...

Journal: :Journal of Engineering Research and Reports 2019

Journal: :International Journal for Research in Applied Science and Engineering Technology 2017

Journal: :Communications in Statistics - Simulation and Computation 2012
Donald R. Jensen Donald E. Ramirez

Ridge regression, perturbing the design moment matrix via a parameter k, persists in the study of ill-conditioned systems. Ridge traces, exhibiting solutions as functions of k, are intended to reflect stability as k evolves, in contrast to transient instabilities in ordinary least squares. This study examines derivative traces as analytic tools regarding stability, and develops rational represe...

2007
M. Frontini

The maximum entropy (M.E.) approach to the nite Hausdorr moment problem is studied, a new approach to prove the necessary and suucient conditions for the existence of M.E. solution is considered by transforming the moment problem into a system of ordinary diierential equations. The new technique allows also to prove entropy convergence of the resulting sequence of maximum entropy extimators, an...

2011
Anton Stefanek Marcel C. Guenther Jeremy T. Bradley

This paper discusses the application of moment closures to continuous Markov chains derived from process algebras such as GPEPA and MASSPA. Two related approaches are being investigated. Firstly we re-formulate normal moment closure in a process algebra framework using Isserlis’ theorem. Secondly we apply a mixture of this normal closure and less precise moment closures for the purpose of reduc...

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