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Quasi-Newton Algorithm

On Application of a New Quasi-Newton Algorithm for Solving Optimal Control Problems

On Application of a New Quasi-Newton Algorithm for Solving Optimal Control Problems

... From the table of results for P1, it is observed that at the 14 th iteration, the terminating norm of the gradient is 0.51583707e-6 using the NQNM while the closest value to it using the CQNM is at the 490 th iteration ...

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The Design of Circular Microstrip Patch Antenna by Using Quasi Newton Algorithm of ANN

The Design of Circular Microstrip Patch Antenna by Using Quasi Newton Algorithm of ANN

... The NN structure for the analysis of CMSA is shown in Figure 2. The Quasi-Newton algorithm has been con- sidered for ANN modeling. The QN-ANN model con- sists of three layers i.e. input layer, hidden ...

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A quasi Newton algorithm for large scale nonlinear equations

A quasi Newton algorithm for large scale nonlinear equations

... nonmonotone line search technique is presented to get the step length α k . The given nonmonotone line search technique can avoid computing the Jacobian matrix. The global convergence and the 1 + q-order convergent rate ...

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Joint Independent Subspace Analysis: A Quasi-Newton Algorithm

Joint Independent Subspace Analysis: A Quasi-Newton Algorithm

... a quasi-Newton (QN) algorithm for joint independent subspace analysis ...QN algorithm achieves asymptotically the minimal mean square error (MMSE) in the separation of multidi- mensional ...

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A quasi-Newton algorithm to solve the matrix quadratic equation

A quasi-Newton algorithm to solve the matrix quadratic equation

... y Newton-S hur; El primero, un método uasi- Newton que usa una aproxima ión se ante a la matriz L(X, S) [24℄, [25℄, [27℄; el segundo, usa el algoritmo de S hur para en ontrar S k en (7) [7℄, [16℄, que ...

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Effect of limited precision on the BFGS quasi-Newton algorithm

Effect of limited precision on the BFGS quasi-Newton algorithm

... If second order information is available to reasonable precision then the straightforward inverse Hessian update of the bfgs method, Hupdate, produced results which are as accurate as th[r] ...

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Optimal design of structures with multiple natural frequency constraints using a hybridized BB-BC/Quasi-Newton algorithm

Optimal design of structures with multiple natural frequency constraints using a hybridized BB-BC/Quasi-Newton algorithm

... Mathematical algorithms are hard to apply and time- consuming in these optimization problems. Furthermore, a good starting point is vital for these methods to be executed success- fully and they may be trapped in local ...

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IMAGE COMPRESSION USING NEURAL NETWORK USING BFGS QUASI NEWTON BACK  PROPAGATION ALGORITHM

IMAGE COMPRESSION USING NEURAL NETWORK USING BFGS QUASI NEWTON BACK PROPAGATION ALGORITHM

... In this paper, new multilayer perceptron’s feed forward propagation neural network using BFGS quasi newton algorithm is proposed and it is trained to achieve image compression. As we know that image ...

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Improved Wireless Sensor Location Algorithm Based on Combined Particle Swarm-Quasi-Newton with Threshold N

Improved Wireless Sensor Location Algorithm Based on Combined Particle Swarm-Quasi-Newton with Threshold N

... DV-Hop algorithm about the origin of its position ...swarm-quasi-Newton algorithm is improved, intercepting the combined DV- Hop location algorithm according to the number of known ...

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Prediction of Flow Duration Curves for Ungauged Basins with Quasi Newton Method

Prediction of Flow Duration Curves for Ungauged Basins with Quasi Newton Method

... BFGS Algorithm The most popular quasi-Newton algorithm is the BFGS method, named by its discoverers Broyden, Fletcher, Goldfarb, and ...BFGS algorithm can be summarized as follows ...

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Quasi - Newton Methods

Quasi - Newton Methods

... Najpoznatija iterativna metoda za rjeˇsavanje naˇse jednadˇ zbe je Newtonova metoda. Medutim, u svakoj iteraciji Newtonove metode trebamo iznova raˇ cunati matricu par- cijalnih derivacija (Jacobijan), a to nije numeriˇ ...

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A Quasi-Newton Population Migration Algorithm for Solving Systems of Nonlinear Equations

A Quasi-Newton Population Migration Algorithm for Solving Systems of Nonlinear Equations

... Index Terms—Nonlinear equations, Quasi-Newton method, Population Migration Algorithm I. I NTRODUCTION Solving nonlinear equations is the actual engineering is an important problem in numerical ...

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Quasi-Newton-Based Preconditioning and Damped Quasi-Newton Schemes for Nonlinear Conjugate Gradient Methods

Quasi-Newton-Based Preconditioning and Damped Quasi-Newton Schemes for Nonlinear Conjugate Gradient Methods

... Email [email protected] Abstract In this paper, we deal with matrix-free preconditioners for nonlinear conjugate gradient (NCG) methods. In particular, we review proposals based on quasi-Newton updates, ...

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Matrix Transformations and Quasi Newton Methods

Matrix Transformations and Quasi Newton Methods

... In this paper, we are interested in the study of infinite linear systems represented by the matrix equation AX = B, where A is an infinite matrix with infinitely many rows and infinitely many columns, B and X are ...

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Stochastic quasi-Newton molecular simulations

Stochastic quasi-Newton molecular simulations

... by Newton methods, ...in Quasi-Newton numerical optimization for constructing a series of positive definite matrices B k 共with k the time index in the discretized Langevin equations兲, such that B k → ...

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Quasi-Newton Method: A New Direction

Quasi-Newton Method: A New Direction

... that quasi-Newton methods can be interpreted as Gaussian regressors using algebraic structure to weaken prior knowledge, in exchange for lower computational ...Bayesian quasi-Newton method, de ...

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A quasi-Newton proximal splitting method

A quasi-Newton proximal splitting method

... projected quasi-Newton (PQN) algorithm [19, 20] is perhaps the most elegant and logical ex- tension of quasi-Newton methods, but it involves solving a ...[4] algorithm for the ...

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A stochastic quasi Newton method for molecular simulations

A stochastic quasi Newton method for molecular simulations

... de Newton methode en de steepest descent methode, een betere convergentie naar het energie minimum vergeleken met een constante mobiliteits ...de quasi Newton methode: het DFP-update ...

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A Technique in Implementations of Riemannian quasi-newton Methods

A Technique in Implementations of Riemannian quasi-newton Methods

... www.math.fsu.edu/~whuang2/Indices/index_ROPTLIB.html Users need only provide a cost function, gradient function, an action of Hessian (if a Newton method is used) in Matlab, Julia, R or [r] ...

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Quasi-Newton Methods for the Acceleration of Multi-Physics Codes

Quasi-Newton Methods for the Acceleration of Multi-Physics Codes

... Approaches for solving these multi-physics problems can be broadly put in two categories: monolithic or partitioned. While we are not claiming that the partitioned approach is panacea for all coupled problems, here we ...

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