Results 11 to 20 of about 13,755 (295)
Testing Unconstrained Optimization Software [PDF]
ACM Transactions on Mathematical Software, 1981 Much of the testing of optimization software is inadequate because the number of test functmns is small or the starting points are close to the solution. In addition, there has been too much emphasm on measurmg the efficmncy of the software and not enough on testing reliability and robustness.
Kenneth E. Hillstrom +2 more
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A Modified Genetic Algorithm in C++ for Optimization of Steel Truss Structures [PDF]
Journal of Soft Computing in Civil Engineering, 2021 A common structural design optimization problem is weight minimization which is done by choosing a set of variables that represent the structural or the architectural configuration of the system satisfying few design specific criterion.
Pawan Kumar +2 more
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Mathematics, 2023 We adopt the alternating direction search pattern method to solve the equality and inequality constrained nonlinear optimization problems. Firstly, a new augmented Lagrangian function with a nonlinear complementarity function is proposed to transform the
Aifen Feng +3 more
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Objective acceleration for unconstrained optimization [PDF]
Numerical Linear Algebra with Applications, 2018 SummaryAcceleration schemes can dramatically improve existing optimization procedures. In most of the work on these schemes, such as nonlinear generalized minimal residual (N‐GMRES), acceleration is based on minimizing the ℓ2 norm of some target on subspaces of .
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Modified new conjugate gradient method for Unconstrained Optimization
Tikrit Journal of Pure Science, 2019 The current paper modified method of conjugate gradient for solving problems of unconstrained optimization. The modified method convergence is achieved by assuming some hypotheses.
Zeyad M. Abdullah +3 more
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Unconstrained optimal transformation matrix [PDF]
IEEE Transactions on Aerospace and Electronic Systems, 1998 We generalize Brock's minimization of the loss function proposed by Wahba to give a least-squares estimate of satellite attitude. We follow Brock in relaxing Wahba's requirement that the minimizing attitude matrix be orthogonal, and discuss the statistical properties of our new solution and its relation to existing attitude estimation algorithms.
Landis Markley, F. +1 more
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An Efficient Algorithm for Unconstrained Optimization [PDF]
Mathematical Problems in Engineering, 2015 This paper presents an original and efficient PSO algorithm, which is divided into three phases: (1) stabilization, (2) breadth-first search, and (3) depth-first search. The proposed algorithm, called PSO-3P, was tested with 47 benchmark continuous unconstrained optimization problems, on a total of 82 instances.
Antonin Ponsich +5 more
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Higher-Order Optimality Conditions for Degenerate Unconstrained Optimization Problems
Journal of Optimization, Differential Equations and Their Applications, 2022 In this paper necessary and sufficient conditions of a minimum for the unconstrained degenerate optimization problem are presented. These conditions generalize the well-known optimality conditions.
Viktor Zadachyn
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An ensemble symbiosis organisms search algorithm and its application to real world problems [PDF]
Decision Science Letters, 2017 In this study, an ensemble algorithm has been proposed, called Quasi-Oppositional Symbiosis Organisms Search (QOSOS) algorithms, by incorporating the quasi-oppositional based learning (QOBL) strategy into the newly proposed Symbiosis Organisms Search ...
Sukanta Nama, Apu Kumar Saha
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An alternative globalization strategy for unconstrained optimization [PDF]
Optimization, 2017 We propose a new globalization strategy that can be used in unconstrained optimization algorithms to support rapid convergence from remote starting points. Our approach is based on using multiple points at each iteration to build a representative model of the objective function.
Öztoprak, Figen, Birbil, Ş. İlker
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