Results 81 to 90 of about 229,971 (268)

Pattern Search Methods for Linearly Constrained Minimization [PDF]

open access: yesSIAM Journal on Optimization, 2000
The given paper is a continuation of the preceding paper [see SIAM J. Optim. 9, 1082--1099 (1999; Zbl 1031.90047)]. The authors develop a general class of feasible point pattern search algorithms for optimization problems with linear constraints of the form \[ \begin{aligned} \text{minimize }\quad & f(x)\\ \text{subject to }\quad & 1\leq Ax\leq u\end ...
Lewis, Robert Michael, Torczon, Virginia
openaire   +1 more source

Normal‐Appearing White Matter Injury Mediates Chronic Deep Venous Hypoxia and Disease Progression in Multiple Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore how cerebral hypoxia and Normal‐Appearing White Matter (NAWM) integrity affect MS lesion burden and clinical course. Methods Seventy‐nine MS patients, including 13 clinically isolated syndrome (CIS) patients and 66 relapsing–remitting multiple sclerosis (RRMS) patients, and 44 healthy controls (HCs) were recruited from ...
Xinli Wang   +8 more
wiley   +1 more source

A New Nonconvex Sparse Recovery Method for Compressive Sensing

open access: yesFrontiers in Applied Mathematics and Statistics, 2019
As an extension of the widely used ℓr-minimization with 0 < r ≤ 1, a new non-convex weighted ℓr − ℓ1 minimization method is proposed for compressive sensing.
Zhiyong Zhou, Jun Yu
doaj   +1 more source

Constrained Minimization Under Vector-Valued Criteria in Linear Topological Spaces [PDF]

open access: yes
Constrained minimization under vector valued criteria in linear topological ...
Da Cunha, N. O., Polak, E.
core   +1 more source

The Constrained Crossing Minimization Problem [PDF]

open access: yes, 1999
In this paper we consider the constrained crossing minimization problem defined as follows. Given a connected planar graph G = (V,E), a combinatorial embedding II(G) of G, and a set of pairwise distinct edges F ⊆ V × V, find a drawing of G′ = (V,E ∼ F) such that the combinatorial embedding II(G) of G is preserved and the number of edge crossings is ...
Mutzel, P., Ziegler, T.
openaire   +2 more sources

Docking sites inside Cas9 for adenine base editing diversification and RNA off-target elimination

open access: yesNature Communications, 2020
Current SpCas9 adenine base editors that minimise RNA off-target activities have constrained editing windows. Here the authors use domain insertion of TadA into Cas9 to narrow, expand or shift the editing window with RNA off-target minimization ...
Shuo Li   +9 more
doaj   +1 more source

Constrained Minimization Problem for Image Restoration Based on Non-Convex Hybrid Regularization

open access: yesIEEE Access, 2020
It is widely known that the classic total variation(TV) model has been proven to be very effective in preserving sharp edges. However, the TV model suffers from the staircase effects which produce blocking artifacts in the restored images. In this paper,
Jianguang Zhu   +3 more
doaj   +1 more source

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

open access: yesInternational Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam   +2 more
wiley   +1 more source

Relaxed Viscosity Approximation Methods with Regularization for Constrained Minimization Problems

open access: yesJournal of Applied Mathematics, 2013
We introduce a new relaxed viscosity approximation method with regularization and prove the strong convergence of the method to a common fixed point of finitely many nonexpansive mappings and a strict pseudocontraction that also solves a convex ...
Lu-Chuan Ceng   +2 more
doaj   +1 more source

Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control

open access: yesAdvanced Engineering Materials, EarlyView.
This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian   +4 more
wiley   +1 more source

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