Quasi Newton

Views Updated: Dec 15, 2025

Abbreviation

Pronunciation

/kˈwɑsi ˈnutən/

Rank-two BFS Quasi Newton(QN) Method and Its Realization in MATLAB for Nonlinear Equations
On the basis of both adaptive BP algorithm and Newtons method, Quasi Newton(QN) algorithm with adaptive decoupled step and momentum ( QNADSM ) for feed-forward neural networks is derived.
This paper presents an algorithm that employs both trust region and quasi Newton techniques for equality constrained problem.
In accordance with the characteristic strong non-linearity of chemical processes, we present the algorithm in which the discrete Newton method and Quasi Newton(QN) method are used alternatively as the one-dimensional incomplete searching method to solve the system of non-linear equations.
This paper gives a decompose of projected quasi Newton algorithm in association with nonmonotone trust region for solving nonlinear equality constrained optimization problems.

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