Results 261 to 270 of about 1,020,088 (291)

A Two Stage Optimization Approach for Calibrating Water Distribution Systems

Water Distribution Systems Analysis 2010, 2011
BWCN is a competition for calibrating pipe roughness coefficients and demand pattern multipliers of CTown Water Distribution System (WDS) to measured SCADA (hourly tank levels and pump flows) and fire flow test data in a 1-week operation. In a pre-calibration step, quality of the data is assessed, base demands for the fire flow tests are estimated, by ...
Masoud Asadzadeh, Bryan A. Tolson, Robert McKillop   +2 more
openaire   +1 more source

Optimal Nursing Home Shift Scheduling: A Two-Stage Stochastic Programming Approach

2020 IEEE 16th International Conference on Automation Science and Engineering (CASE), 2020
In this paper, we study a nursing home staff schedule optimization problem under resident demand uncertainty. We formulate a two-stage stochastic binary program accordingly, with objective to minimize the total labor cost (linearly related to work time) incurred by both regular registered nurses (RRNs) and part-time nurses (PTNs).
Shujin Jiang, Mingyang Li, Kathryn Hyer, Nan Kong   +3 more
openaire   +1 more source

A two-stage approach for optimizing the robust injection molding parameters

2011 Chinese Control and Decision Conference (CCDC), 2011
In this paper, a two-stage approach is proposed for optimizing the robust injection molding parameters. In the first-stage optimization, the simplex method is used to search for qualified parameters when the starting parameter is disqualified. In the second-stage optimization, forgetting factor recursive least square algorithm is used to build the ...
Li Dapeng, Xu Jia, Liu Yang, Wang Fuli
openaire   +1 more source

A Two-stage Approach To Solving Large-scale Optimal Power Flows

IEEE Conference Proceedings Power Industry Computer Applications Conference, 1979. PICA-79., 2005
A two stage optimization algorithm is developed for the solution of the large-scale optimal power flow (OPF) problem. The solution scheme is arrived at by exploiting the structural properties of the OPF problem formulation, including the physical characteristics of its variables.
null Felix F. Wu, G. Gross, J.F. Luini, null Pui Mee Look   +3 more
openaire   +1 more source

Simulation approach to two-stage bond portfolio optimization problem

2014
Studies on two sides are done in this thesis. First, we consider bond portfolio optimization problem under stochastic optimization structure; second, specific algorithm to solve the problem is explored. A stochastic model for the problem is constructed.
openaire   +1 more source

An approach to solving a two-stage optimization problem under uncertainty

Computers & Chemical Engineering, 1997
Abstract In this paper, two new algorithms for solving a two-stage optimization problem are given. The problem arises during design of chemical processes when there is some uncertainty in original data. These algorithms are extensions of an algorithm suggested by Ostrovsky et al. (1994) [Computers chem. Engng 18(8), 755–767 (1995)].
G.M. Ostrovsky, Yu.M. Volin, M.M. Senyavin   +2 more
openaire   +1 more source

Optimal Household Behaviour under Taxation - a Two-Stage Dynamic Programming Approach

1980
This paper presents a method of solving a practical optimization problem which arose in the context of private households' reactions to income tax levied from couples. Since the problem of constrained maximization of the household's life-time utility function in n prospective periods is complicated and sizeable, a two-stage dynamic programming approach
Stern, Victor, Stern, Victor
openaire   +1 more source

Health insurance status and cancer stage at diagnosis and survival in the United States

Ca-A Cancer Journal for Clinicians, 2022
Jingxuan Zhao, Xuesong Han, Leticia Nogueira   +2 more
exaly  

A viability theory approach to a two-stage optimal control problem [PDF]

, 2007
A two-stage control problem is one, in which model parameters (“technology”) might be changed at some time. An optimal solution to utility maximisation for this class of problems needs to thus contain information on the time, at which the change will take place (0, finite or never) as well as the optimal control strategies before and after the change ...
Krawczyk, Jacek B., Serea, Oana-Silvia
openaire  

Current and future cancer staging after neoadjuvant treatment for solid tumors

Ca-A Cancer Journal for Clinicians, 2021
James D Brierley Mb, Frcp, Daniel C Sullivan   +1 more
exaly