نتایج جستجو برای: weighted linear combination method

تعداد نتایج: 2365951  

2004
Bas J. de Kruif

A combination of recursive least squares and weighted least squares is made which can adapt its structure such that a relation between inand output can he approximated, even when the structure of this relation is unknown beforehand. This method can adapt its structure on-line while it preserves information offered by previous samples, making it applicable in a control setting. This method has b...

Journal: :محیط زیست طبیعی 0
صبا رضا سلطانی گروه محیط زیست و انرژی، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران سید مسعود منوری گروه محیط زیست و انرژی، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران عبدالرسول سلمان ماهینی گروه محیط زیست، دانشگاه علوم کشاورزی و منابع طبیعی گرگان علی اصغر آل شیخ گروه مهندسی سیستم اطلاعات جغرافیایی، دانشگاه خواجه نصیرالدین طوسی

unplanned urban development imposes significant pressure on land resources and land use structures and brings about many negative socio-economic and environmental consequences. therefore, comprehensive studies should be applied to support urban land use management in the world and especially in developing countries. in iran, like many other developing countries, urban development is fast and of...

2000
Jian-Ming Tang

The structure of a quantized vortex in a Bose-Einstein Condensate is investigated using the projection method developed by Peierls, Yoccoz, and Thouless. This method was invented to describe the collective motion of a many-body system beyond the mean-field approximation. The quantum fluctuation has been properly built into the variational wave function, and a vortex is described by a linear com...

Journal: :Magnetic resonance imaging 2008
Mark Bydder Gavin Hamilton Takeshi Yokoo Claude B Sirlin

A method for making weighted linear combinations of the spectra acquired by a phased-array coil is described. Unlike most previous combination methods, no special reference points in the data are chosen to represent the coil weights. Instead, all the data points are used, which results in optimal signal-to-noise ratio more reliable estimation. The method uses singular value decomposition to ide...

Journal: :international journal of industrial mathematics 0
a. shoja‎ department of mathematics‎, ‎science and research branches‎, ‎islamic azad university‎, ‎tehran‎, ‎iran. e. babolian department of mathematics‎, ‎science and research branches‎, ‎islamic azad university‎, ‎tehran‎, ‎iran. a. r. vahidi department of mathematics‎, ‎science and research branches‎, ‎islamic azad university‎, ‎tehran‎, ‎iran.

in this paper, a new spectral-iterative method is employed to give approximate solutions of fractional logistic differential equation. this approach is based on combination of two different methods, i.e. the iterative method cite{35} and the spectral method. the method reduces the differential equation to systems of linear algebraic equations and then the resulting systems are solved by a numer...

Journal: :European Journal of Operational Research 2014
Jacques Desrosiers Jean Bertrand Gauthier Marco E. Lübbecke

Column generation for solving linear programs with a huge number of variables alternates between solving a master problem and a pricing subproblem to add variables to the master problem as needed. The method is known to suffer from degeneracy of the master problem, exposing what is called the tailing-off effect. Inspired by recent advances in coping with degeneracy in the primal simplex method,...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2015
Emily S C Ching Pik-Yin Lai C Y Leung

We present a method that reconstructs both the links and their relative coupling strength of bidirectional weighted networks. Our method requires only measurements of node dynamics as input. Using several examples, we demonstrate that our method can give accurate results for weighted random and weighted scale-free networks with both linear and nonlinear dynamics.

2009
S. M. Vaezpour

Throughout this paper by using the frame theory we give a short proof for atomic decomposition for weighted Bergman space. In fact we show that the weighted Bergman space L 2 a (dA α) admit an atomic decomposition i.e every analytic function in this space can be presented as a linear combination of " atoms " defined using the normalized reproducing kernel of this space .

Journal: :Int. Arab J. Inf. Technol. 2018
Omar A. Alzubi Jafar A. Alzubi Sara Tedmori Hasan Rashaideh Omar Almomani

In this paper, a new method for combining an ensemble of classifiers, called Consensus-based Combining Method (CCM) is proposed and evaluated. As in most other combination methods, the outputs of multiple classifiers are weighted and summed together into a single final classification decision. However, unlike the other methods, CCM adjusts the weights iteratively after comparing all of the clas...

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