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Parametric Ghost Image Processes for Fixed-Charge Problems: A Study of Transportation Networks

Fred Glover
2005 Journal of Heuristics  
We present a parametric approach for solving fixed-charge problems first sketched in Glover (1994) .  ...  The test set of fixed-charge transportation problems used in our study constitutes the most comprehensive randomly generated collection available in the literature.  ...  We also thank Professor Minghe Sun for providing us with the tabu search code developed for Sun et al. (1998) study and the fixed-charge transportation testbed problems. Note 1.  ... 
doi:10.1007/s10732-005-2135-x fatcat:tj3ziq7ctbhddbj43wvamanz5e

A Self-Organizing Extreme-Point Tabu-Search Algorithm for Fixed Charge Network Problems with Extensions [article]

Richard S. Barr
2020 arXiv   pre-print
We propose a new self-organizing algorithm for fixed-charge network flow problems based on ghost image (GI) processes as proposed in Glover (1994) and adapted to fixed-charge transportation problems in  ...  Our self-organizing GI algorithm iteratively modifies an idealized representation of the problem embodied in a parametric ghost image, enabling all steps to be performed with a primal network flow algorithm  ...  case of fixed-charge transportation networks.  ... 
arXiv:2007.06685v1 fatcat:zyp5qm2x5vhappl6n2dg5dztim

Fixed Charge Transportation Problems: a new heuristic approach based on Lagrangean relaxation and the solving of core problems

Jesús Sáez Aguado
2008 Annals of Operations Research  
recently proposed parametric ghost image processes (GIP) of Glover el al. (2005).  ...  , such as the tabu search procedure and the parametric ghost image processes.  ...  I would like to thank Professors Minghe Sun and Meddi Amini for providing me with the fixed-charge transportation testbed problems.  ... 
doi:10.1007/s10479-008-0483-2 fatcat:2463vpp6knckporw7xalddjh5u

A Heuristic Algorithm for Solving Fixed-Charge Transportation Problem

Fanrong Xie, Renan Jia
2009 2009 WRI World Congress on Computer Science and Information Engineering  
The fixed charge transportation problem (FCTP) is a deployment of the classical transportation problem in which a fixed cost is incurred, independent of the amount transported, along with a variable cost  ...  Finally, computational results of heuristic and metaheuristics with different encoding approaches, both in terms of the solution quality and computation time, are studied in different problem sizes.  ...  especially for medium and large sized problems.  ... 
doi:10.1109/csie.2009.110 dblp:conf/csie/XieJ09 fatcat:6j635y4qyvbm5ij43nofnra5am

Data Analysis Methods for Software Systems

Jolita Bernatavičienė
2021 Vilnius University Proceedings  
This means that the topics of the conference are actual for business, too.  ...  When we organize it, the main priority is the health of the participants. There is a possibility to read the oral presentations online.  ...  It is a crucial task to maintain the quality of the image and its suitability for processing.  ... 
doi:10.15388/damss.12.2021 fatcat:iefv6bz3drcrfpcwxoaqmu3gra

Pattern recognition and event reconstruction in particle physics experiments

R Mankel
2004 Reports on progress in physics (Print)  
After a brief introduction into general concepts of particle detectors and statistical evaluation, different approaches in global and local methods of track pattern recognition are reviewed with their  ...  Finally, the global reconstruction of the event is briefly addressed.  ...  Acknowledgment It is a pleasure to thank E Lohrmann for his valuable comments on the manuscript.  ... 
doi:10.1088/0034-4885/67/4/r03 fatcat:4qujfy27ajg4hoecne2tje3ede

Do Artificial Intelligence Systems Understand? [article]

Eduardo C. Garrido-Merchán, Carlos Blanco
2022 arXiv   pre-print
This paper addresses the problem of deciding whether the so-called "intelligent machines" are capable of understanding, instead of merely processing signs.  ...  Is the underlying philosophical concept of intelligence satisfactory for describing how the present systems work? Is understanding a necessary and sufficient condition for intelligence?  ...  The main problems of studying this property, from a scientific point of view, are two.  ... 
arXiv:2207.11089v1 fatcat:udysr4ulyjfw7fe267cpo7vemu

Practical Influences of Geometric and Radiometric Image Quality Provided By Different Digital Camera Systems

S. Robson, M. R. Shortis
1998 Photogrammetric Record  
Some experimental results are presented including the imaging of planar arrays of differing sized retrotargets at differing angles and exposures and a series of network analyses in which the level of target  ...  This paper revisits some fundamentals of the optical imaging of retrotargets and investigates some abilities of a range of digital camera systems to provide images of retrotargets that are appropriate  ...  In contrast to an interline sensor, the same sensor elements are used for charge accumulation and for charge transportation.  ... 
doi:10.1111/0031-868x.00123 fatcat:n2qmywejknflvdjk4333bj4uvi

Adversarial Learned Molecular Graph Inference and Generation [article]

Sebastian Pölsterl, Christian Wachinger
2020 arXiv   pre-print
Recent methods for generating novel molecules use graph representations of molecules and employ various forms of graph convolutional neural networks for inference.  ...  In this work, we propose ALMGIG, a likelihood-free adversarial learning framework for inference and de novo molecule generation that avoids explicitly computing a reconstruction loss.  ...  We gratefully acknowledge the support of NVIDIA Corporation with the donation of the Quadro P6000 GPU used for this research.  ... 
arXiv:1905.10310v2 fatcat:lpephwlkl5cqnklxck44wxygya

Meshless techniques for anisotropic diffusion

Annamaria Mazzia, Giorgio Pini, Flavio Sartoretto
2014 Applied Mathematics and Computation  
The latter would allow better use of parallel computers, since time-stepping is essentially a serial process. Moreover, it would be good for the methods to be of high order accuracy.  ...  Our objective is to simulate transport processes over very long time periods, as needed in, e.g., the simulation of geologic carbon sequestration.  ...  We present complex scenarios of multicomponent reactive transport in 2-D and in 3-D. These scenarios are further developments of the setting given by the MoMaS benchmark.  ... 
doi:10.1016/j.amc.2014.03.032 fatcat:c527226gyfgbffnq4p67qxd7wi

Aquatic Debris Detection Using Embedded Camera Sensors

Yong Wang, Dianhong Wang, Qian Lu, Dapeng Luo, Wu Fang
2015 Sensors  
To upload debris images, we use an efficient sparse recovery algorithm in which only a few linear measurements need to be transmitted for image reconstruction.  ...  Aquatic debris monitoring is of great importance to human health, aquatic habitats and water transport.  ...  Qian Lu and Dapeng Luo were responsible for the hardware of the sensor node and the host software, and Wu Fang was responsible for the debris image recovery.  ... 
doi:10.3390/s150203116 pmid:25647741 pmcid:PMC4367351 fatcat:vciskoscdvg3tj4unjzeaxab2m

HIV-1 Engages a Dynein-Dynactin-BICD2 Complex for Infection and Transport to the Nucleus

Stephanie K. Carnes, Jing Zhou, Christopher Aiken
2018 Journal of Virology  
We conclude that BICD2 is a capsid-associated dynein adaptor utilized by HIV-1 for transport to the nucleus.  ...  BICD2 interacts with the HIV-1 capsid in vitro, suggesting that it functions as a capsid-specific adaptor for HIV-1 intracellular transport.  ...  Viruses for fixed cell imaging studies were produced by cotransfection of HIV-GFP (8 µg) with pHCMV-G (2 µg), GFP-Vpr (2 µg), and S15-mCherry (1 µg).  ... 
doi:10.1128/jvi.00358-18 pmid:30068656 pmcid:PMC6158414 fatcat:ba4cmtdvt5f7blqkdzjsihtaui

ÉCole De Physique Des Houches [chapter]

2007 Les Houches  
Established in 1951, the Physics School is located in a group of chalets surrounded by meadows and woods, at an altitude of 1150 m facing the Mont-Blanc range -a very favourable environment for intellectual  ...  activity in ideal surroundings for skiing, hiking or mountaineering.  ...  Transport of molecules in the tumor interstitium: A Review. Cancer Res, 47:3039-3051 (1987). The authors would like to thank Dr. Naz Chaudary and Dr. Richard Hill for providing the tumor bearing mice.  ... 
doi:10.1016/s0924-8099(13)60020-7 fatcat:jydcwidbbnf3nppqp4x3pyu6ga

École de Physique des Houches [chapter]

2008 Les Houches  
Established in 1951, the Physics School is located in a group of chalets surrounded by meadows and woods, at an altitude of 1150 m facing the Mont-Blanc range -a very favourable environment for intellectual  ...  activity in ideal surroundings for skiing, hiking or mountaineering.  ...  Transport of molecules in the tumor interstitium: A Review. Cancer Res, 47:3039-3051 (1987). The authors would like to thank Dr. Naz Chaudary and Dr. Richard Hill for providing the tumor bearing mice.  ... 
doi:10.1016/s0924-8099(13)60004-9 fatcat:nxiezedqabbbtnfqonvw6c3doi

École de Physique des Houches [chapter]

2006 Les Houches  
Established in 1951, the Physics School is located in a group of chalets surrounded by meadows and woods, at an altitude of 1150 m facing the Mont-Blanc range -a very favourable environment for intellectual  ...  activity in ideal surroundings for skiing, hiking or mountaineering.  ...  Transport of molecules in the tumor interstitium: A Review. Cancer Res, 47:3039-3051 (1987). The authors would like to thank Dr. Naz Chaudary and Dr. Richard Hill for providing the tumor bearing mice.  ... 
doi:10.1016/s0924-8099(06)80084-3 fatcat:6w7diik2k5af7cpowh4xz3nsky
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