Results 21 to 30 of about 350,522 (285)

A metaheuristic method for the multireturn-to-depot petrol truck routing problem with time windows

open access: yesPetroleum Science, 2019
The petrol truck routing problem is an important part of the petrol supply chain. This study focuses on determining routes for distributing petrol products from a depot to petrol stations with the objective of minimizing the total travel cost and the ...
Bohong Wang   +4 more
doaj   +1 more source

Bell inequalities for continuous-variable correlations [PDF]

open access: yes, 2007
We derive a new class of correlation Bell-type inequalities. The inequalities are valid for any number of outcomes of two observables per each of n parties, including continuous and unbounded observables.
C. J. Foster   +8 more
core   +2 more sources

Valid inequalities for mixed integer linear programs [PDF]

open access: yesMathematical Programming, 2007
This tutorial presents a theory of valid inequalities for mixed integer linear sets. It introduces the necessary tools from polyhedral theory and gives a geometric understanding of several classical families of valid inequalities such as lift-and-project cuts, Gomory mixed integer cuts, mixed integer rounding cuts, split cuts and intersection cuts, and
openaire   +2 more sources

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

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

A polyhedral approach for the Equitable Coloring Problem [PDF]

open access: yes, 2011
In this work we study the polytope associated with a 0,1-integer programming formulation for the Equitable Coloring Problem. We find several families of valid inequalities and derive sufficient conditions in order to be facet-defining inequalities.
Bahiense   +15 more
core   +2 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  

Entanglement detection beyond the CCNR criterion for infinite-dimensions [PDF]

open access: yes, 2012
In this paper, in terms of the relation between the state and the reduced states of it, we obtain two inequalities which are valid for all separable states in infinite-dimensional bipartite quantum systems.
A S Holevo   +31 more
core   +2 more sources

Home - About - Disclaimer - Privacy