Results 51 to 60 of about 7,929,866 (305)

Three-Dimensional Microwave Imaging: Fast and Accurate Computations with Block Resolution Algorithms

Sensors, 2020
This paper considers the microwave imaging reconstruction problem, based on additive penalization and gradient-based optimization. Each evaluation of the cost function and of its gradient requires the resolution of as many high-dimensional linear systems
Corentin Friedrich, Sébastien Bourguignon, Jérôme Idier, Yves Goussard   +3 more
doaj   +1 more source

An α-Model Parametrization Algorithm for Optimization with Differential-Algebraic Equations

Applied Sciences, 2022
An optimization task with nonlinear differential-algebraic equations (DAEs) was approached. In special cases in heat and mass transfer engineering, a classical direct shooting approach cannot provide a solution of the DAE system, even in a relatively ...
Paweł Drąg
doaj   +1 more source

Lifestyle Behaviors and Cardiotoxic Treatment Risks in Adult Childhood Cancer Survivors

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Higher doses of anthracyclines and heart‐relevant radiotherapy increase cardiovascular disease (CVD) risk. This study assessed CVD and CVD risk factors among adult childhood cancer survivors (CCSs) across cardiotoxic treatment risk groups and examined associations between lifestyle behaviors and treatment risks.
Ruijie Li, Raquel Revuelta Iniesta, Alan R. Barker, Dimitris Vlachopoulos, Tomáš Sláma, Christina Schindera, Fabiën N. Belle   +6 more
wiley   +1 more source

An improved convex constrained conjugate gradient descent method for nonlinear monotone equations with signal recovery applications

AIMS Mathematics
The conjugate descent (CD) method is a conjugate gradient (CG) variant with remarkable convergence properties. This paper presents a modified CD scheme for solving systems of constrained monotone nonlinear equations. Eigenvalue analysis demonstrates that
Habibu Abdullahi, A. K. Awasthi, Mohammed Yusuf Waziri, Issam A. R. Moghrabi, Abubakar Sani Halilu, Kabiru Ahmed, Sulaiman M. Ibrahim, Yau Balarabe Musa, Elissa M. Nadia   +8 more
doaj   +1 more source

A Novel Bat Algorithm with Multiple Strategies Coupling for Numerical Optimization

Mathematics, 2019
A bat algorithm (BA) is a heuristic algorithm that operates by imitating the echolocation behavior of bats to perform global optimization. The BA is widely used in various optimization problems because of its excellent performance.
Yechuang Wang, Penghong Wang, Jiangjiang Zhang, Z. Cui, Xingjuan Cai, Wensheng Zhang, Jinjun Chen   +6 more
semanticscholar   +1 more source

Predicting Chronicity in Children and Adolescents With Newly Diagnosed Immune Thrombocytopenia at the Timepoint of Diagnosis Using Machine Learning‐Based Approaches

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Objectives To identify predictors of chronic ITP (cITP) and to develop a model based on several machine learning (ML) methods to estimate the individual risk of chronicity at the timepoint of diagnosis. Methods We analyzed a longitudinal cohort of 944 children enrolled in the Intercontinental Cooperative immune thrombocytopenia (ITP) Study ...
Severin Kasser, Alice Bizeul, Meera Chitlur, Hugo Donato, Jelena Roganovic, Julia E. Vogt, Thomas Kühne   +6 more
wiley   +1 more source

Extremal Optimization of Graph Partitioning at the Percolation Threshold

, 1999
The benefits of a recently proposed method to approximate hard optimization problems are demonstrated on the graph partitioning problem. The performance of this new method, called Extremal Optimization, is compared to Simulated Annealing in extensive ...
Balberg I, Banavar J R, Boettcher S, Boettcher S, Cerny V, Cheeseman P, Erdös P, For those issues see, Fu Y T, Garey M R, Gould S J, H Frauenfelder, Houdayer J, Janson S, Johnson D S, Kirkpatrick S, Mezard M, Mezard M, Sorkin G B, Stauffer D, Stefan Boettcher, Toulouse G, Wong K Y M, Wong K Y M, Wong K Y M   +24 more
core   +1 more source

Patient‐Level Barriers and Facilitators to Inpatient Physical Therapy in Adolescents and Young Adults With a Hematological Malignancy: A Qualitative Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Despite their increased risk for functional impairment resulting from cancer and its treatments, few adolescents and young adults (AYAs) with a hematological malignancy receive the recommended or therapeutic dose of exercise per week during inpatient hospitalizations.
Jennifer A. Kelleher, Jennifer L. Bernstein, Katia M. Crisler, Julia K. Herriott, Kimberly L. Klages, Robin E. Norris, Mariann L. Strenk, Sarah E. Bills, Meghan E. McGrady   +8 more
wiley   +1 more source

An Adaptive Whale Optimization Algorithm Using Gaussian Distribution Strategies and Its Application in Heterogeneous UCAVs Task Allocation

IEEE Access, 2019
To overcome the defect of whale optimization algorithm (WOA) being easily fallen into local optimum caused by the ill-distribution of solutions, this paper explores an adaptive WOA variant using Gaussian distribution strategies (GDSs), named GDS-WOA.
Yintong Li, Tong Han, Hui Zhao, Hanjie Gao   +3 more
doaj   +1 more source

Circle Search Algorithm: A Geometry-Based Metaheuristic Optimization Algorithm

Mathematics, 2022
This paper presents a novel metaheuristic optimization algorithm inspired by the geometrical features of circles, called the circle search algorithm (CSA).
Mohammed H. Qais, Hany M. Hasanien, Rania A. Turky, Saad Alghuwainem, Marcos Tostado-Véliz, Francisco Jurado   +5 more
doaj   +1 more source