نتایج جستجو برای: derivative free line saerch
تعداد نتایج: 958053 فیلتر نتایج به سال:
The conventional differential quadrature (DQ) method is limited in its application to regular regions by using functional values along a mesh line to approximate derivatives. In this work, we extend the idea of DQ method to a general case. In other words, any spatial derivative is approximated by a linear weighted sum of all the functional values in the whole physical domain. The weighting coef...
in this paper, we present a new modification of chebyshev-halley method, free from second derivatives, to solve nonlinear equations. the convergence analysis shows that our modification is third-order convergent. every iteration of this method requires one function and two first derivative evaluations. so, its efficiency index is $3^{1/3}=1.442$ that is better than that o...
The maximization of one-dimensional piecewise linear concave (OPLC) functions arises in the line search associated with the maximization of piecewise linear concave functions (e.g. Kelley cutting plane method). The OPLC line search is usually done by the next-break-point method, where one goes from break point to break point up to the optimum. If the number of break points is large this method ...
We propose a variation of simplex-downhill algorithm specifically customized for optimizing parameters in statistical machine translation (SMT) decoder for better end-user automatic evaluation metric scores for translations, such as versions of BLEU, TER and mixtures of them. Traditional simplexdownhill has the advantage of derivative-free computations of objective functions, yet still gives sa...
Nonlinear equation solving by without memory iterative methods is taken into account in the present research. Recently, Khattri and Argyros in [S.K. Khattri, I.K. Argyros, Sixth order derivative free family of iterative methods, Appl. Math. Comput. 217 (2011), 5500-5507], proposed a sixth-order family of derivative-free methods including four function evaluations per full cycle to reach the ind...
در این پروژه فرایند طراحی تیغه و تحلیل جریان در کمپرسور محوری توربین گازی مورد بررسی قرار می گیرد. هدف از انجام این پروژه تهیه یک نرم افزار می باشد که ورودی های مورد نیاز را از کاربر گرفته و محاسبات طراحی و تحلیل را انجام داده و در نهایت خروجی های مورد نیاز را هم به صورت عددی و هم به صورت نموداری در اختیار کاربر قرار دهد. طراحی اولیه با استفاده از روش mean line design به منظور به دست آوردن مشخص...
Introdution:The use of chemotherapy drugs has side effects and the use of herbal compounds in the treatment of cancer faces challenges. Nanoparticles, especially liposomes, with appropriate properties in drug delivery, such as slow drug release, low toxicity at the target cell site, can solve some of these problems. Therefore, the aim of the present study was to construct a liposomal system con...
the development and discovery of new anticancer agents is one of the main goals in medicinal chemistry. the conventional anticancer drugs are concomitant with high incidence of unpleasant side effects like severe gastrointestinal side effects and bone marrow suppression. in recent years, various selective anticancer agents have been emerged like dasatinib. the exact mechanism of dasatinib is th...
In this survey article we give the basic description of the interpolation based derivative free optimization methods and their variants. We review the recent contributions dealing with the maintaining the geometry of the interpolation set, the management of the trust region radius and the stopping criteria. Derivative free algorithms developed for problems with some structure like for partially...
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