Results 51 to 60 of about 463,836 (293)
On exact linesearch quasi-Newton methods for minimizing a quadratic function
, 2017 This paper concerns exact linesearch quasi-Newton methods for minimizing a quadratic function whose Hessian is positive definite. We show that by interpreting the method of conjugate gradients as a particular exact linesearch quasi-Newton method ...
Forsgren, Anders, Odland, Tove
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Unified formulation of a family of iterative solvers for power systems analysis [PDF]
, 2016 This paper illustrates the construction of a new class of iterative solvers for power flow calculations based on the method of Alternating Search Directions.
Borzacchiello, Domenico +4 more
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Quasi-Newton Methods for Solving Nonlinear Programming Problems [PDF]
Computer Science Journal of Moldova, 1996 In the present paper the problem of constrained equality optimization is reduced to sequential solving a series of problems of quadratic programming. The Hessian of the Lagrangian is approximated by a sequence of symmetric positive definite matrices. The
V.Moraru
doaj
Mathematics, 2022 In this paper, we follow a chronological development of gradient descent methods and its accelerated variants later on. We specifically emphasise some contemporary approaches within this research field. Accordingly, a constructive overview over the class
Vladimir Rakočević +1 more
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Quasi-Newton Methods for Markov Chain Monte Carlo [PDF]
, 2011 The performance of Markov chain Monte Carlo methods is often sensitive to the scaling and correlations between the random variables of interest. An important source of information about the local correlation and scale is given by the Hessian matrix of ...
Chain Monte Carlo +2 more
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Probabilistic Interpretation of Linear Solvers
, 2014 This manuscript proposes a probabilistic framework for algorithms that iteratively solve unconstrained linear problems $Bx = b$ with positive definite $B$ for $x$.
Hennig, Philipp
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Advanced Functional Materials, EarlyView.ABSTRACT Materials that can deform, sense, and autonomously generate power in response to wireless magnetic fields, through both magnetic‐actuated shape transformation and charge generation, are an emerging focus in advanced functional materials research.
Zhi Zhao, Xiaojia Shelly Zhang
wiley +1 more source
On Quasi-Newton Forward--Backward Splitting: Proximal Calculus and Convergence [PDF]
, 2018 We introduce a framework for quasi-Newton forward--backward splitting algorithms (proximal quasi-Newton methods) with a metric induced by diagonal $\pm$ rank-$r$ symmetric positive definite matrices.
Becker, Stephen +2 more
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The optimum design of electrode and insulator contours by nonlinear programming using the surface charge simulation method [PDF]
, 1988 A new method is presented for optimizing electrode and insulator contours. The contours are modified by using the iteration methods of nonlinear programming until the desired electric field distribution is obtained.
Misaki, T., Tsuboi, H.
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Water‐Stable Paper‐Based Laser‐Induced Graphene With Asymmetric Water Adhesion and Wettability
Advanced Materials Interfaces, EarlyView.Paper‐based electronics are attractive for sustainable and disposable devices, but often fail in wet environments. By introducing Parafilm into cellulose paper combined with laser conversion, two graphene surfaces with different water interactions are created.
Lingyin Meng +3 more
wiley +1 more source