Results 11 to 20 of about 2,575,606 (330)

On the Locally Polynomial Complexity of the Projection-Gradient Method for Solving Piecewise Quadratic Optimisation Problems [PDF]

open access: yesEntropy, 2021
This paper proposes a method for solving optimisation problems involving piecewise quadratic functions. The method provides a solution in a finite number of iterations, and the computational complexity of the proposed method is locally polynomial of the ...
Agnieszka Prusińska   +2 more
doaj   +2 more sources

Adaptive Restart of the Optimized Gradient Method for Convex Optimization [PDF]

open access: yesJ Optim Theory Appl, 2017
First-order methods with momentum such as Nesterov's fast gradient method are very useful for convex optimization problems, but can exhibit undesirable oscillations yielding slow convergence rates for some applications.
Fessler, Jeffrey A., Kim, Donghwan
core   +2 more sources

Fundamental investigation on free-form optimization of vibration lures

open access: yesNihon Kikai Gakkai ronbunshu, 2021
Lure fishing is a special fishing method that using artificial fishing lures as fish baits and has become more and more popular all over the world. Vibration lures are a regular item among fishing lures that perform vibration action in the water for ...
Jin-Xing SHI   +2 more
doaj   +1 more source

Low Complexity Wireless Powered Information Transfer Strategy for Multiuser MIMO Systems

open access: yesIEEE Access, 2018
In this paper, the minimum achievable rate maximization problem for wireless-powered multiple users is investigated. Zero-forcing (ZF)-based precoding is considered for information transmission (IT) in the uplink from multi-antenna users to a multi ...
Jihoon Choi, Jingon Joung
doaj   +1 more source

Accuracy and Uncertainty of Gradient Based Leak Localization Procedure for Liquid Transmission Pipelines

open access: yesSensors, 2021
This paper describes issues of leakage localization in liquid transmission pipelines. It focuses on the standard leak localization procedure, which is based on the calculation of pressure gradients using pressure measurements captured along a pipeline ...
Pawel Ostapkowicz, Andrzej Bratek
doaj   +1 more source

Application of Convective Condensation Level Limiter in Convective Boundary Layer Height Retrieval Based on Lidar Data

open access: yesAtmosphere, 2017
Micro pulse lidar is a promising tool for retrieving the convective boundary layer height (CBLH), but its application has been hindered by sharp extinction of the signal in high humidity conditions, e.g., clouds. To remedy this, we developed an effective
Hong Li   +5 more
doaj   +1 more source

Gradient Convergence in Gradient methods with Errors [PDF]

open access: yesSIAM Journal on Optimization, 2000
Summary: We consider the gradient method \(x_{t+1}=x_t+\gamma_t(s_t+w_t)\), where \(s_t\) is a descent direction of a function \(f:{\mathfrak R}^n\to{\mathfrak R}\) and \(w_t\) is a deterministic or stochastic error. We assume that \(\nabla f\) is Lipschitz continuous, that the stepsize \(\gamma_t\) diminishes to 0, and that \(s_t\) and \(w_t\) satisfy
Bertsekas, Dimitri P.   +1 more
openaire   +1 more source

The Semi Implicit Gradient Augmented Level Set Method [PDF]

open access: yes, 2012
Here a semi-implicit formulation of the gradient augmented level set method is presented. By tracking both the level set and it's gradient accurate subgrid information is provided,leading to highly accurate descriptions of a moving interface.
Chidyagwai P.   +4 more
core   +1 more source

A Three-Term Conjugate Gradient Method with Sufficient Descent Property for Unconstrained Optimization [PDF]

open access: yes, 2011
Conjugate gradient methods are widely used for solving large-scale unconstrained optimization problems, because they do not need the storage of matrices.
Hager W. W.   +4 more
core   +1 more source

A Potential Framework for Allocating National Park Service Budgets

open access: yesFrontiers in Forests and Global Change, 2022
The US Department of Interior, including the National Park Service (NPS), has interest in developing a national fire budgeting process that reflects and promotes program (fuels and preparedness) efficiencies while being transparent, fair, stable, and ...
Douglas B. Rideout   +3 more
doaj   +1 more source

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