Results 61 to 70 of about 489 (91)
Observation thinning in data assimilation computations
We propose to use an observation-thinning method for the efficient numerical solution of large-scale incremental four- dimensional (4D-Var) data assimilation problems.
Serge Gratton+3 more
doaj
Many real-world optimization models comprise nonconvex and nonsmooth functions leading to very hard classes of optimization models. In this article, a new interior-point method for the special, but practically relevant class of optimization problems with
Martin Schmidt
doaj
Complementarity-based nonlinear programming techniques for optimal mixing in gas networks
We consider nonlinear and nonsmooth mixing aspects in gas transport optimization problems. As mixed-integer reformulations of pooling-type mixing models already render small-size instances computationally intractable, we investigate the applicability of ...
FalkM. Hante, Martin Schmidt
doaj
Solving wind farm layout optimization with mixed integer programs and constraint programs
The wind farm layout optimization problem is concerned with the optimal location of turbines within a fixed geographical area to maximize profit under stochastic wind conditions. Previously, it has been modeled as a maximum diversity (or p-dispersion-sum)
PeterY. Zhang+3 more
doaj
Determining locations and layouts for parcel lockers to support supply chain viability at the last mile. [PDF]
Kahr M.
europepmc +1 more source
This paper elaborates compact MIP formulations for a discrete unit commitment problem with minimum stop and ramping constraints. The variables can be defined in two different ways.
Nicolas Dupin
doaj
Combining stochastic programming and optimal control to solve multistage stochastic optimization problems [PDF]
In this contribution we propose an approach to solve a multistage stochastic programming problem which allows us to obtain a time and nodal decomposition of the original problem.
Diana Barro, Elio Canestrelli
core
Effectively managing diagnostic tests to monitor the COVID-19 outbreak in Italy. [PDF]
Lampariello L, Sagratella S.
europepmc +1 more source
This paper addresses two variants of the routing and wavelength assignment problem arising in the context of optical transport networks. In both variants, we address the case where the physical coverage of the fiber network is such that regenerators, to ...
Amaro de Sousa+2 more
doaj
Distributionally robust mean-absolute deviation portfolio optimization using wasserstein metric. [PDF]
Chen D, Wu Y, Li J, Ding X, Chen C.
europepmc +1 more source