Suchergebnisse - 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 von 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 …”
Volltext

New derivative-free iterative family having optimal convergence order sixteen and its applications von 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 …”
Volltext

About the Performance of a Calculus-Based Approach to Building Model Functions in a Derivative-Free Trust-Region Algorithm von 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 …”
Volltext

A Two-Dimensional Variant of Newton’s Method and a Three-Point Hermite Interpolation: Fourth- and Eighth-Order Optimal Iterative Schemes von 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 …”
Volltext

A derivative-free projection method with double inertial effects for solving nonlinear equations von 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 …”
Volltext

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

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

Distributed quasi-Newton derivative-free optimization method for optimization problems with multiple local optima von 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 …”
Volltext

A Progressive Barrier for Derivative-Free Nonlinear Programming von 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 …”
Volltext

Derivative Free Conjugate Gradient Method via Broyden's Update for solving symmetric systems of nonlinear equations von 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 …”
Volltext

Derivative-Free Observability Analysis of a Stochastic Dynamical System von 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 …”
Volltext

New horizons in sphere-packing theory, part II: lattice-based derivative-free optimization via global surrogates von 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 …”
Volltext

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

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

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

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

Production optimization using derivative free methods applied to Brugge field case von 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 …”
Volltext

Symmetry in Applied Mathematics

“… Operators and First Integrals for Generalized Systems of Lane-Emden Equations), algorithms, programs and software analysis …”
Volltext

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

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

Efficient sampling techniques for surrogate-based optimization with thermoelastic application von 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 …”
Volltext

Simulation optimization: a review of algorithms and applications von 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 …”
Volltext

A derivative-free filter method for solving nonlinear complementarity problems von 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 …”
Volltext

A derivative-free algorithm for nonlinear equations and its applications in multibody dynamics von 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 …”
Volltext