Results 91 to 100 of about 6,356,541 (351)

First-order integer programming for MAP problems

open access: yes, 2015
Finding the most probable (MAP) model in SRL frameworks such as Markov logic and Problog can, in principle, be solved by encoding the problem as a `grounded-out' mixed integer program (MIP).
Cussens, James
core   +1 more source

Automatic Exposure Volumetric Additive Manufacturing

open access: yesAdvanced Materials Technologies, EarlyView.
Tomographic volumetric additive manufacturing (VAM) is resin‐based 3D printing technology, where objects are printed in seconds using volumetric light patterning. Although fast, tomographic VAM struggles to produce repeatable and accurate prints. This work demonstrates an automatic exposure method for tomographic VAM, resulting in commercial‐grade ...
Antony Orth   +10 more
wiley   +1 more source

MIPCL LIBRARY FOR SOLVING MIXED INTEGER PROGRAMMING PROBLEMS

open access: yesInformatika, 2016
The Mixed Integer Programming Class Library (MIPCL) is a free software designed for implementing mixed integer programming models quickly, easily, and efficiently. Computational experiments show that currently MIPCL is one of the best noncommercial mixed-
N. N. Pisaruk
doaj  

Efficient election campaign optimization using integer programming

open access: yesJournal of Industrial Engineering and Management, 2018
Purpose: Political parties spend significant amounts of resources during their election campaigns, which are usually designed in a sub-optimal and informal way.
Evren Güney
doaj   +1 more source

How to Manufacture Photonic Metamaterials

open access: yesAdvanced Materials Technologies, EarlyView.
Metamaterials boast applications such as invisibility and “hyperlenses” with resolution beyond the diffraction limit, but these applications haven’t been exploited in earnest and the market for them hasn’t grown much likely because facile and economical methods for fabricating them without defect has not emerged.
Apurba Paul, Gregory Timp
wiley   +1 more source

Multistage stochastic programming model and solution algorithm for the capacity expansion of railway network

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2018
We consider a capacity expansion problem for a railway network under uncertainty. In our approach, integer and stochastic programming provide a basic framework.
Takayuki SHIINA   +4 more
doaj   +1 more source

Reformulation and Decomposition of Integer Programs [PDF]

open access: yes, 2009
We examine ways to reformulate integer and mixed integer programs. Typically, but not exclusively, one reformulates so as to obtain stronger linear programming relaxations, and hence better bounds for use in a branch-and-bound based algorithm. First we cover reformulations based on decomposition, such as Lagrangean relaxation, the Dantzig-Wolfe ...
VANDERBECK , François   +1 more
openaire   +4 more sources

Ellipticity‐Controlled Exceptional Points and Cross‐Polarized Phase Singularities in Multi‐Layer Silicon Guided Mode Resonant Metasurfaces

open access: yesAdvanced Optical Materials, EarlyView.
Omni‐polarizers that pull all input polarization states to an elliptical or linear polarization can be made using highly resonant bi‐layer metasurfaces. The ellipticity of the selected polarization can be controlled by choosing the layer separation.
Ben Goldberg   +2 more
wiley   +1 more source

Submicrosecond Electric Switching of Large Birefringence in the Isotropic Phase of Ferroelectric Nematics

open access: yesAdvanced Optical Materials, EarlyView.
We demonstrate ultra‐fast and efficient electro‐optical switching using the isotropic phase of ferroelectric nematic liquid crystals. A moderate electric field induces a transition to polar ferroelectric nematic order, producing large field‐induced birefringence with sub‐microsecond switch‐on and switch‐off times. This advance enables new opportunities
Kamal Thapa   +2 more
wiley   +1 more source

Integer program with bimodular matrix

open access: yesDiscrete Optimization, 2009
This paper has been accepted for publication in Discrete Optimization.
A. J. Chirkov, S. I. Veselov
openaire   +3 more sources

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