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MP
2006
100views more  MP 2006»
13 years 10 months ago
A branch-and-cut algorithm for the stochastic uncapacitated lot-sizing problem
This paper addresses a multi-stage stochastic integer programming formulation of the uncapacitated lot-sizing problem under uncertainty. We show that the classical ( , S) inequalit...
Yongpei Guan, Shabbir Ahmed, George L. Nemhauser, ...
NJC
2006
57views more  NJC 2006»
13 years 10 months ago
Towards Unambiguous Model Fragments
In model based design model fragments are used in everyday work. Concurrent operations on separate parts of a model and communication between stakeholders are some examples. Howeve...
Mika Siikarla, Jari Peltonen, Johannes Koskinen
SIAMAM
2008
96views more  SIAMAM 2008»
13 years 10 months ago
Hill's Equation with Random Forcing Terms
Motivated by a class of orbit problems in astrophysics, this paper considers solutions to Hill's equation with forcing strength parameters that vary from cycle to cycle. The ...
Fred C. Adams, Anthony M. Bloch
SIAMSC
2008
188views more  SIAMSC 2008»
13 years 10 months ago
Adaptivity with Dynamic Meshes for Space-Time Finite Element Discretizations of Parabolic Equations
In this paper, we develop an error estimator and an adaptive algorithm for efficient solution of parabolic partial differential equations. The error estimator assesses the discreti...
Michael Schmich, Boris Vexler
CCE
2004
13 years 10 months ago
An MPEC formulation for dynamic optimization of distillation operations
We consider the dynamic optimization of chemical processes with changes in the number of equilibrium phases. Recent work has shown that transitions in the number of phases can be ...
Arvind U. Raghunathan, M. Soledad Diaz, Lorenz T. ...