Výsledky vyhledávání - Derivative-free methods and methods using generalized derivatives

Periodic solutions of nonlinear ordinary differential equations computed by a boundary shape function method and a generalized derivative-free Newton method Autor Liu, Chein-Shan, Chang, Chih-Wen

“… A boundary shape function method (BSFM), using the derived shape functions, is devised to an initial value problem with the initial values of new variables given, whereas the terminal values and period are determined by iterative algorithms…”
Získat plný text

New derivative-free iterative family having optimal convergence order sixteen and its applications Autor Kaur, Manpreet, Kumar, Sanjeev, Kansal, Munish

“… problems.Design/methodology/approachThe scheme is generalized by using the power-mean notion. By applying Neville's interpolating technique, the methods are formulated into the derivative-free approaches…”
Získat plný text

About the Performance of a Calculus-Based Approach to Building Model Functions in a Derivative-Free Trust-Region Algorithm Autor Hare, Warren, Jarry-Bolduc, Gabriel

“… Two versions of a derivative-free trust-region method are implemented. The first version builds model functions by using a calculus-based approach, and the second version builds model functions by directly considering the objective function…”
Získat plný text

A Two-Dimensional Variant of Newton’s Method and a Three-Point Hermite Interpolation: Fourth- and Eighth-Order Optimal Iterative Schemes Autor Liu, Chein-Shan, El-Zahar, Essam R., Chang, Chih-Wen

“… b. We recast the Newton iterative method to two types of derivative-free iterative schemes by using the finite difference technique…”
Získat plný text

A derivative-free projection method with double inertial effects for solving nonlinear equations Autor Ibrahim, Abdulkarim Hassan, Al-Homidan, Suliman

“… This paper introduces a derivative-free projection method (DFPM) with a double-inertial extrapolation step for solving large-scale systems of nonlinear equations…”
Získat plný text

A derivative-free descent method in set optimization Autor Jahn, Johannes

“… A new derivative-free descent method for the solution of set optimization problems is given together with numerical results in low dimensions…”
Získat plný text

Distributed quasi-Newton derivative-free optimization method for optimization problems with multiple local optima Autor Gao, Guohua, Wang, Yixuan, Vink, Jeroen C., Wells, Terence J., Saaf, Fredrik J.F.E.

“…The distributed Gauss-Newton (DGN) optimization method performs quite efficiently and robustly for history-matching problems with multiple best matches…”
Získat plný text

A Progressive Barrier for Derivative-Free Nonlinear Programming Autor Audet, Charles, Dennis, J. E.

“…The researchers propose a new constraint-handling approach for general constraints that is applicable to a widely used class of constrained derivative-free optimization methods…”
Získat plný text

Derivative Free Conjugate Gradient Method via Broyden's Update for solving symmetric systems of nonlinear equations Autor Dauda, M.K., Mamat, Mustafa, Mohamad, Fatma Susilawati, Magaji, Abubakar S., Waziri, M.Y.

“… To overcome such problems, a Derivative free Method for Solving Symmetric Systems of Nonlinear Equations Using Broyden's Update is presented…”
Získat plný text

Derivative-Free Observability Analysis of a Stochastic Dynamical System Autor Zheng, Zongsheng, Xu, Yijun, Mili, Lamine, Liu, Zhigang, Peng, Long, Wang, Yuhong

“… Unlike the traditional observability analysis approach, our approach is fully derivative-free, resulting in a low complexity and an easy implementation…”
Získat plný text

New horizons in sphere-packing theory, part II: lattice-based derivative-free optimization via global surrogates Autor Belitz, Paul, Bewley, Thomas

“…Derivative-free algorithms are frequently required for the optimization of nonsmooth scalar functions in n dimensions resulting, for example, from physical experiments or from the…”
Získat plný text

A generalized evolutionary metaheuristic (GEM) algorithm for engineering optimization Autor Yang, Xin-She

“…Many optimization problems in engineering and industrial design applications can be formulated as optimization problems with highly nonlinear objectives,…”
Získat plný text

Data assimilation with soft constraints (DASC) through a generalized iterative ensemble smoother Autor Luo, Xiaodong, Cruz, William C.

“… The proposed workflow is built upon a recently proposed umbrella algorithm, called the generalized iterative ensemble smoother (GIES…”
Získat plný text

Production optimization using derivative free methods applied to Brugge field case Autor Asadollahi, Masoud, Nævdal, Geir, Dadashpour, Mohsen, Kleppe, Jon

“… Here, we evaluate derivative free optimization methods for determination of the optimal production strategy using a numerical reservoir model which was prepared for a comparative study at the SPE…”
Získat plný text

Derivative free method for computing modes of multilayer planar waveguide Autor Semwal, Girish, Rastogi, Vipul

“… The solution is based on the derivative free method for computing the zeros of an analytical function in complex plane…”
Získat plný text

Efficient sampling techniques for surrogate-based optimization with thermoelastic application Autor AbdEl-latief, A., Haridy, A., Abouelseoud, Y., EL-Alem, M.

“…In many real-life models, the objective function may be very expensive to calculate or sometimes a black-box function. Therefore, a surrogate model is required…”
Získat plný text

Simulation optimization: a review of algorithms and applications Autor Amaran, Satyajith, Sahinidis, Nikolaos V., Sharda, Bikram, Bury, Scott J.

“…Simulation optimization refers to the optimization of an objective function subject to constraints, both of which can be evaluated through a stochastic…”
Získat plný text

A derivative-free filter method for solving nonlinear complementarity problems Autor Nie, Pu-yan, Fan, Jin-yan

“… Derivative-free methods are hence considered. Generalized pattern search (GPS) method, as a kind of derivative-free method, plays a very significant role…”
Získat plný text

A derivative-free algorithm for nonlinear equations and its applications in multibody dynamics Autor Tang, Di, Bao, Shiyi, Lv, Binbin, Guo, Hongtao, Luo, Lijia, Mao, Jianfeng

“… System's governing equations are then derived using generalized coordinates by Lagrange methods…”
Získat plný text

A DIRECT SEARCH QUASI-NEWTON METHOD FOR NONSMOOTH UNCONSTRAINED OPTIMIZATION Autor PRICE, C. J.

“… The method estimates the gradient via central differences using a maximal frame around each iterate…”
Získat plný text