Results 41 to 50 of about 952,480 (282)

Joint Chance-Constrained Economic Dispatch Involving Joint Optimization of Frequency-Related Inverter Control and Regulation Reserve Allocation

CSEE Journal of Power and Energy Systems
The issues of uncertainty and frequency security become significantly serious in power systems with the high penetration of volatile inverter-based renewables (IBRs), which makes it necessary to consider the uncertainty and frequency-related constraints ...
Ye Tian, Zhengshuo Li, Wenchuan Wu, Miao Fan   +3 more
doaj   +1 more source

A Sample Average Approximation Approach for Aircraft Product Configuration Optimization with Customer Order Uncertainty

Aerospace
Commercial aircraft manufacturers often face order uncertainty in particular situations, such as quantity or demand change, or lack of confirmed customer options. As a countermeasure, aircraft manufacturers can adopt a two-stage strategy to produce batch
Xinyuan Zhang, Kejun Qiu, Bo Niu, Lu Chen, Juntong Xi   +4 more
doaj   +1 more source

General Feasibility Bounds for Sample Average Approximation via Vapnik--Chervonenkis Dimension

SIAM Journal on Optimization, 2022
We investigate the feasibility of sample average approximation (SAA) for general stochastic optimization problems, including two-stage stochastic programming without the relatively complete recourse assumption. Instead of analyzing problems with specific structures, we utilize results from the Vapnik-Chervonenkis (VC) dimension and Probably ...
Henry Lam, Fengpei Li
openaire   +3 more sources

Pulmonary Dysfunction Is Associated With Sleep Study Abnormalities in Children With Sickle Cell Disease: A Multicenter Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Pulmonary dysfunction and sleep abnormalities are common in children with sickle cell disease (SCD) and are associated with worse clinical outcomes. Whether spirometry abnormalities are associated with polysomnography (PSG) findings remains unclear.
Ammar Saadoon Alishlash, Anis Rabbani Nourani, A. K. M. Fazlur Rahman, Dima Ezmigna, Tarig Ali‐Dinar   +4 more
wiley   +1 more source

Financial Burden Associated With Hospitalisation Among Families of Childhood Brain Tumours in Australia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Families of children with cancer experience significant financial strain, even with universal healthcare. Indirect costs, such as productivity losses and non‐medical expenses, are rarely included in economic evaluations, and little is known about how effectively financial aid programmes alleviate this burden. Childhood brain tumours
Megumi Lim, Natalie Bradford, David Brain, Sameera Senanayake, Sanjeewa Kularatna, Kate Young, Christine Cashion, Tim Hassall, Susanna Cramb   +8 more
wiley   +1 more source

A Sample Average Approximation Approach for Stochastic Optimization of Flight Test Planning with Sorties Uncertainty

Mathematics
In the context of flight test planning, numerous uncertainties exist, encompassing aircraft status, number of flights, and weather conditions, among others.
Lunhao Ju, Jiang Jiang, Luofu Wu, Jianbin Sun   +3 more
doaj   +1 more source

Sample average approximation of stochastic dominance constrained programs [PDF]

Mathematical Programming, 2010
The paper develops an algorithm for the solution of optimization problems with multi-variate second-order stochastic dominance constraints. The sample Average Approximation (SAA) method is applied to a relaxation of this problem. For the resulting semi-infinite program, asymptotic convergence of optimal values and optimal solutions (as the sample size ...
Hu, Jian, Homem-de-Mello, Tito, Mehrotra, Sanjay   +2 more
openaire   +2 more sources

Inpatient Food Insecurity and Pediatric Hematology Oncology Hospitalization Outcomes

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Children with cancer and blood disorders are at risk for food insecurity (FI). We aimed to describe the association of inpatient food insecurity (IFI) and hospitalization outcomes among patients admitted to the pediatric hematology oncology service. Of 325 caregivers screened for IFI, 60 (18.6%) screened positive.
Joanna M. Robles, Greg Russell, Leila H. DeWitt, Kimberly Montez, Callie L. Brown   +4 more
wiley   +1 more source

Data-Driven Sample Average Approximation with Covariate Information

, 2022
We study optimization for data-driven decision-making when we have observations of the uncertain parameters within the optimization model together with concurrent observations of covariates. Given a new covariate observation, the goal is to choose a decision that minimizes the expected cost conditioned on this observation.
Kannan, Rohit, Bayraksan, Guezin, Luedtke, James R.   +2 more
openaire   +3 more sources

‘They Need to Hear You Say It’: Healthcare Professionals’ Perspectives on Barriers and Enablers to End‐of‐Life Discussions With Adolescents and Young Adults With Cancer

Pediatric Blood &Cancer, EarlyView.
ABSTRACT End‐of‐life conversations with adolescents and young adults (AYAs) with cancer rarely occur without the guidance of healthcare professionals. As a part of the ‘Difficult Discussions’ study, focused on palliative care and advance care planning discussions with AYAs with cancer, we investigated the factors that healthcare professionals identify ...
Justine Lee, Holly Evans, Claire E. Wakefield, Antoinette Anazodo, Richard J. Cohn, Brittany C. McGill, Elizabeth A. Lobb, Lori Wiener, Madeleine L. Juhrmann, Ursula M. Sansom‐Daly   +9 more
wiley   +1 more source