Results 41 to 50 of about 164,723 (287)

An Algorithm for Global Maximization of Secrecy Rates in Gaussian MIMO Wiretap Channels [PDF]

open access: yes, 2015
Optimal signaling for secrecy rate maximization in Gaussian MIMO wiretap channels is considered. While this channel has attracted a significant attention recently and a number of results have been obtained, including the proof of the optimality of ...
Charalambous, Charalambos D.   +1 more
core   +1 more source

Q-Curve and Area Rules for Choosing Heuristic Parameter in Tikhonov Regularization

open access: yesMathematics, 2020
We consider choice of the regularization parameter in Tikhonov method if the noise level of the data is unknown. One of the best rules for the heuristic parameter choice is the quasi-optimality criterion where the parameter is chosen as the global ...
Toomas Raus, Uno Hämarik
doaj   +1 more source

Fine-Tuning Swin Transformer and Multiple Weights Optimality-Seeking for Facial Expression Recognition

open access: yesIEEE Access, 2023
Facial expression recognition plays a key role in human-computer emotional interaction. However, human faces in real environments are affected by various unfavorable factors, which will result in the reduction of expression recognition accuracy.
Hongqi Feng   +3 more
doaj   +1 more source

GOGMA: Globally-Optimal Gaussian Mixture Alignment

open access: yes, 2016
Gaussian mixture alignment is a family of approaches that are frequently used for robustly solving the point-set registration problem. However, since they use local optimisation, they are susceptible to local minima and can only guarantee local ...
Campbell, Dylan, Petersson, Lars
core   +1 more source

Global Stabilization of Attitude Dynamics: SDRE-based Control Designs [PDF]

open access: yesAUT Journal of Modeling and Simulation, 2018
The State-Dependant Riccati Equation method has been frequently used to design suboptimal controllers applied to nonlinear dynamic systems. Different methods for local stability analysis of SDRE controlled systems of order higher than two such as the ...
M. Safi, M. Mortazavi, S.M. Dibaji
doaj   +1 more source

Clinical and Biological Features of Response in Resistant Neuroblastoma to 131I‐Metaiodobenzylguanidine Radiotherapy in the Anti‐GD2 Immunotherapy Era

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background 131I‐metaiodobenzylguanidine (131I‐MIBG) radiotherapy is a key treatment for relapsed and refractory (R/R) neuroblastoma (NB). Patients with R/R disease treated in the modern era are increasingly exposed to anti‐GD2 immunotherapy, which exerts selective pressure and may modify both tumor cell state and microenvironment.
Benjamin J. Lerman   +7 more
wiley   +1 more source

Global and local optimality conditions in set-valued optimization problems

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2005
We consider both global and local conditions for optimization problems governed by set-valued maps. For global conditions, we present a comparative study and then we impose the weaker ones to obtain optimality conditions.
M. Durea
doaj   +1 more source

Subdomain separability in global optimization

open access: yesJournal of Global Optimization, 2022
AbstractWe introduce a generalization of separability for global optimization, presented in the context of a simple branch and bound method. Our results apply to continuously differentiable objective functions implemented as computer programs. A significant search space reduction can be expected to yield an acceleration of any global optimization ...
Jens Deussen, Uwe Naumann
openaire   +4 more sources

Efficacy and Safety Analysis of Roxarestat in Regulating Renal Anemia in Patients on Maintenance Hemodialysis

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Objective To compare the efficacy and safety of roxarestat versus recombinant human erythropoietin (rhEPO) in the management of renal anemia in patients undergoing maintenance hemodialysis. Methods This was a prospective, open‐label, randomized controlled trial.
Lingling Chen, Junjie Zhu, Qiaonan Ge
wiley   +1 more source

Cooperative predictive control for arbitrarily mixed vehicle platoons with guaranteed global optimality

open access: yesIET Intelligent Transport Systems, 2023
This paper studies the cooperative control problem of a mixed vehicle platoon, which is composed of connected autonomous vehicles (CAVs) and human‐driven vehicles (HDVs) in an arbitrary order.
Jingyuan Zhan, Zhen Hua, Liguo Zhang
doaj   +1 more source

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