Results 21 to 30 of about 350,084 (285)

Optimizing glass coating lines: MIP model and valid inequalities [PDF]

open access: yesEuropean Journal of Operational Research, 2007
Glass coating is a specific transformation aiming at improving glass performance. The work presented in this paper deals with the determination of the optimal configuration of the production lines used to perform this operation. We propose a first MIP formulation of the problem and then discuss several types of valid inequalities for improving it.
Gicquel, Céline   +3 more
openaire   +2 more sources

Valid inequalities for mixed 0–1 programs

open access: yesDiscrete Applied Mathematics, 1986
A class of valid linear inequalities and facets for the convex hull is derived for a typical region appearing in mixed 0-1 programs. To use these inequalities computationally, it is shown how one can find a most violated inequality by solving a series of parametric equality knapsack problems with multiple choice constraints.
Van Roy, Tony J., Wolsey, Laurence A.
openaire   +1 more source

Valid inequalities for a time-indexed formulation [PDF]

open access: yesOperations Research Letters, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Berghman, Lotte, Spieksma, Frits
openaire   +2 more sources

Geometric inequalities for black holes [PDF]

open access: yes, 2014
It is well known that the three parameters that characterize the Kerr black hole (mass, angular momentum and horizon area) satisfy several important inequalities. Remarkably, some of these inequalities remain valid also for dynamical black holes.
Ciudad Universitaria Córdoba   +1 more
core   +1 more source

Concentration inequalities for cross-validation in scattered data approximation [PDF]

open access: yesJournal of Approximation Theory, 2022
Choosing models from a hypothesis space is a frequent task in approximation theory and inverse problems. Cross-validation is a classical tool in the learner's repertoire to compare the goodness of fit for different reconstruction models. Much work has been dedicated to computing this quantity in a fast manner but tackling its theoretical properties ...
Bartel, Felix, Hielscher, Ralf
openaire   +3 more sources

Mixed integer programming model with non-circular and guided constraints for architectural layout design optimization [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2008
Various techniques have been used to solve a challenging architecturallayout design problem for more than a decade, such as an expert system, an evolutionary algorithm, a simulated annealing and a mathematical programming method.
Kamol Keatruangkamala   +1 more
doaj  

Inequalities for low-energy symmetric nuclear matter [PDF]

open access: yes, 2004
Using effective field theory we prove inequalities for the correlations of two-nucleon operators in low-energy symmetric nuclear matter. For physical values of operator coefficients in the effective Lagrangian, the S = 1, I = 0 channel correlations must ...
C. Vafa   +4 more
core   +1 more source

Valid inequalities based on the interpolation procedure [PDF]

open access: yesMathematical Programming, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Dash, Sanjeeb, Günlük, Oktay
openaire   +1 more source

A Hyperheuristic Approach to Multi-Echelon Hub and Routing Optimization: Model, Valid Inequalities, and Case Study

open access: yesIEEE Open Journal of Intelligent Transportation Systems
Efficient logistics management is critical in the modern global supply chain, and this study introduces an advanced hyperheuristic approach to the Multi-Echelon Hub and Routing Optimization (MEHRO) problem.
Kassem Danach   +3 more
doaj   +1 more source

A linear formulation with O(n2) variables for quadratic assignment problems with Manhattan distance matrices

open access: yesEURO Journal on Computational Optimization, 2015
We present O(n2)an integer linear formulation that uses the so-called “distance variables” to solve the quadratic assignment problem (QAP). The formulation performs particularly well for problems with Manhattan distance matrices.
Serigne Gueye, Philippe Michelon
doaj   +1 more source

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