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7th International Conference on Logistics Operations Management (GOL)

作者： Oumachtaq, Asma Ouzizi, Latifa Douimi, Mohammed Ecole Natl Super Arts & Metiers Math Modeling & Comp Sci Lab BP 15290 El Mansour Meknes Morocco

ISBN: (纸本)9783031686337;9783031686344

The Vehicle Routing Problem (VRP) is a classic combinatorial optimization problem with a wide range of uses, studied for over more than fifty years since Dantzig and Ramser. In this paper, we define and present the bi-objective Green Capacitated Vehicle Routing Problem (GCVRP), the primary goal of the problem is to identify vehicle routes that will serve a group of customers while reducing the overall distance traveled and the amount of carbon dioxide emissions, we formulate a mathematical model and suggest using the grasp (Greedy Randomized Adaptive Search Procedure) algorithm to solve the problem. The metaheuristic is tested on instances that we have proposed. The numerical experiment results demonstrate the algorithm's effectivenesswithin a reasonable amount of time in the case of small instances, permitting us to utilize it extensively in subsequent work.

关键词： Green capacitated vehicle routing problem CO2 emissions grasp algorithm

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Evaluation of the Accuracy of the Aerosol Optical and Microphysical Retrievals by the grasp algorithm from Combined Measurements of a Polarized Sun-Sky-Lunar Photometer and a Three-Wavelength Elastic Lidar

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REMOTE SENSING 2023年第20期15卷 5010-5010页

作者： Oliveira, Daniel Camilo Fortunato dos Santos Sicard, Michael Rodriguez-Gomez, Alejandro Comeron, Adolfo Munoz-Porcar, Constantino Gil-Diaz, Cristina Lolli, Simone Dubovik, Oleg Lopatin, Anton Herrera, Milagros Estefania Herreras-Giralda, Marcos Univ Politecn Cataluna Dept Signal Theory & Commun CommSensLab Barcelona 08034 Spain Univ Reunion Lab Atmosphere & Cyclones F-97744 St Denis France CNR Inst Methodol Environm Anal IMAA I-85050 Tito Italy Univ Lille CNRS UMR 8518 LOA Lab Opt Atmospher LOA F-59650 Lille France GRASP SAS Generalized Retrieval Atmosphere & Surface Proper F-59260 Lezennes France

The versatile Generalized Retrieval of Aerosol and Surface Properties (grasp) algorithm exploits the advantages of synergic ground-based aerosol observations such as radiometric (sensitive to columnar aerosol optical and microphysical properties) and lidar (sensitive to vertical distribution of the optical properties) observations. The synergy is possible when the complementary data is mutually constrained by grasp parametrization that includes, for the first time ever, the degree of linear polarization (DoLP) parameter measured by a polarized sun-sky-lunar AERONET photometer (380, 440, 500, 675, 870, 1020, and 1640 nm) in synergy with the vertical profiles from an elastic lidar (355, 532, and 1064 nm). First, a series of numerical tests is performed using simulated data generated using a climatology of data and ground-based measurements. The inversions are performed with and without random noise for five different combinations of input data, starting from the AERONET-like dataset and increasing to the complex one by adding more information for three aerosol scenarios: I-high aerosol optical depth (AOD) with dominant coarse mode;II-low AOD with dominant coarse mode;III-high AOD with dominant fine mode. The inclusion of DoLP improves (i) the retrieval accuracy of the fine-mode properties when it is not dominant;(ii) the retrieval accuracy of the coarse-mode properties at longer wavelengths and that of the fine-mode properties at shorter wavelengths;(iii) the retrieval accuracy of the coarse-mode real part of the refractive index (up to 36% reduction), but has no effect on the retrieval of the imaginary part;(iv) reduces up to 83% the bias of the sphere fraction (SF) retrieval in coarse-mode dominated regimes;and (v) the root mean square error (RMSE) of the retrieval for most of the parameters in all scenarios. In addition, the addition of more photometer channels in synergy with a three-wavelength elastic lidar reduces the RMSE for the real part (67% in the coarse mo

关键词： grasp algorithm DoLP synergy photometer lidar

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grasp/Δ: An efficient algorithm for the multi-objective portfolio optimization problem

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EXPERT SYSTEMS WITH APPLICATIONS 2023年 211卷

作者： Estrada-Padilla, Alejandro Gomez-Santillan, Claudia Fraire-Huacuja, Hector Joaquin Cruz-Reyes, Laura Rangel-Valdez, Nelson Morales-Rodriguez, Maria Lucila Puga-Soberanes, Hector Jose Inst Tecnol Ciudad Madero Tecnol Nacl Mexico Grad Program Div Ave 1o Mayo EsqSor Juana Ines Cruz S-N Cd Madero 89440 Tamaulipas Mexico CONACyT Tecnol Nacl Mexico Inst Tecnol Ciudad Madero Ave 1o Mayo Esq Sor Juana Ines Cruz S-N Cd Madero 89440 Tamaulipas Mexico Tecnol Nacl Mexico Grad Program Div Inst Tecnol Leon Ave Tecnol S-N Leon 37290 Guanajuato Mexico

The multi-objective portfolio optimization problem with fuzzy trapezoidal parameters involves a search for a subset of projects that, within the given available resources, maximizes the benefits while reducing the uncer-tainty. Traditionally, evolutionary algorithms are used to solve this problem;however, they do not exploit the locality structure of a solution or compute the values of its objective functions using the full set of n decision variables. As a result, the number of evaluations that can be computed within a fixed amount of time decreases as the size of the instances increases, yielding poor performance. This work proposes a new non-evolutionary grasp/& UDelta;algorithm that includes a novel local search with an efficient local computation strategy. The use of local computation reduces the number of operations required to compute the values of the objective functions from O(n) to O(1). Consequently, the increment in evaluations performed in the proposed approach increases the quality of the obtained solutions, particularly as the search space grows. An experiment conducted with instances of different sizes demonstrates the overall competitiveness of grasp/& UDelta;compared to other state-of-the-art al-gorithms. Our results show, as expected, that the differences in performance become statistically more significant when dealing with instances defined by large search spaces. These results were validated using non-parametric statistical tests.

关键词： Local computation algorithm grasp algorithm Multi-objective portfolio optimization problem Uncertainty Trapezoidal fuzzy numbers

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A grasp algorithm for Trailer Scheduling of Crossdock Operations in Cold-chain Logistics

A GRASP Algorithm for Trailer Scheduling of Crossdock Operat...

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International Conference on Industrial Engineering and Systems Management (IESM)

作者： Zheng, Feifeng Pang, Yaxin Donghua Univ Glorious Sun Sch Business & Management Shanghai Peoples R China

ISBN: (纸本)9781728115665

Crossdocks play a significant role in cold-chain logistics. This paper addresses a trailer scheduling problem with crossdock operation in cold-chain logistics. A mixed-integer linear programming (MILP) model is constructed in this paper. Internal operations and the scheduling on inbound and outbound trailers have been planned with the objective to minimize the total costs (penalty cost from suppliers and customers, inventory cost and transportation cost) incurred in transhipment. Not only the repacking operations at crossdock are considered, but also some features of the cold chain are taken into account in this model. A set of instances are tested by solver CPLEX. The running time to solve large-scale instances is fairly long. Therefore, we proposed a grasp algorithm for this problem to solve the large scale instances in reality. Finally, we compare the results of CPLEX and the grasp algorithm. The results indicate that the algorithm is of high efficiency.

关键词： Trailer Scheduling Crossdock Cold-chain MILP grasp algorithm

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A genetic algorithm to solve 3D traveling salesman problem with initial population based on a grasp algorithm

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JOURNAL OF COMPUTATIONAL METHODS IN SCIENCES AND ENGINEERING 2017年第1_suppl期17卷 S1-S10页

作者： Meneses, Sebastian Cueva, Rony Tupia, Manuel Guanira, Miguel Pontificia Univ Catolica Peru Lima Dept Engn Lima 32 Peru

In this paper, the problem of obtaining optimal routes on tridimensional environments is discussed. This scenario is called as Traveler Salesman Problem (TSP 3D-variation). As is widely known, TSP has NP-complexity so is necessary to apply techniques to solve it approximately (no exacts solutions available). The purpose of this research is to present a genetic algorithm to solve 3D-TSP variation. These kind of evolutionary algorithms are ideal for solving complex problems where necessary rearrangements and route optimization. In case of genetic algorithms, optimal solutions appear faster depending on the quality of initial population, so theory recommends using metaheuristics for generating this population. In this study, it has used a metaheuristic grasp algorithm to generate the initial population and, over it, apply the genetic operators proposed for optimizing individuals obtained. The results have optimal routes of movement and displacement and are directly applicable in the storage industry.

关键词： Traveling salesman problem TSP 3D-TSP problem Genetic algorithm grasp algorithm metaheuristics evolutionary algorithms bioinformatics

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Integrated recovery of aircraft and passengers after airline operation disruption based on a grasp algorithm

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TRANSPORTATION RESEARCH PART E-LOGISTICS AND TRANSPORTATION REVIEW 2016年 87卷 97-112页

作者： Hu, Yuzhen Song, Yan Zhao, Kang Xu, Baoguang Harbin Engn Univ Sch Econ & Management Harbin 150001 Heilongjiang Peoples R China Univ Iowa Dept Management Sci Iowa City IA 52242 USA Chinese Acad Sci Inst Policy & Management Beijing 100190 Peoples R China

This paper considers the integrated recovery of both aircraft routing and passengers. A mathematical model is proposed based on both the flight connection network and the passenger reassignment relationship. A heuristic based on a grasp algorithm is adopted to solve the problem. A passenger reassignment solution is demonstrated to be optimal in each iteration for a special case. The effectiveness of the heuristic is illustrated through experiments based on synthetic and real-world datasets. It is shown that the integrated recovery of flights and passengers can decrease both the recovery cost and the number of disrupted passengers. (C) 2016 Elsevier Ltd. All rights reserved.

关键词： Airline disruptions Integrated recovery Aircraft rerouting Passenger reassignment Heuristic grasp algorithm

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The integrated planning of outgoing coil selection for retrieval, multi-crane scheduling, and location assignment to the incoming and blocking coils in steel coil warehouses

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COMPUTERS & INDUSTRIAL ENGINEERING 2024年 190卷

作者： Nadali, Fatemeh Iranpoor, Mehdi Malekian, Yaser Isfahan Univ Technol Dept Ind & Syst Engn Esfahan *** Iran

In this paper, the problem of scheduling crane -operated warehouses in a triangle stacking style is investigated. In a steel supply chain, warehouses play a significant role in establishing a connection between the producer and the customers. Therefore, improving their performance results in a competitive advantage in the supply chain. One of the challenges of steel coil warehouses is the selection of outgoing coils out of the candidate coils for retrieval. Despite its importance, this problem has not been investigated in the studies relevant to steel coil warehouses. In this study, in addition to the selection of outgoing coils, sequencing of the operations on the incoming, outgoing, and blocking coils, location assignment to the incoming and blocking coils, and crane scheduling are considered in an integrated manner. First, a mixed integer linear programming model is proposed. Further, a Greedy heuristic algorithm and two metaheuristics are developed to solve large -sized instances of the problem. Metaheuristics include a Greedy Randomized Adaptive Search Procedure (grasp) and a hybrid algorithm that combines Ant Colony System with the grasp (ACS -grasp). Finally, performances of the proposed algorithms are compared over randomly generated instances as well as instances which are generated based on the real data obtained from Isfahan's Mobarakeh Steel Company. To conduct this analysis, various performance evaluation metrics are applied. Computational results indicate that ACS -grasp converges slower than grasp, but is more reliable and efficient. On the other hand, in large -sized instances, the Greedy algorithm runs extremely fast and can find solutions which are comparable to the metaheuristic solutions.

关键词： Multi-crane scheduling Greedy algorithm grasp algorithm Ant colony system algorithm Outgoing coil selection

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Properties of aerosol and surface derived from OLCI/Sentinel-3A using grasp approach: Retrieval development and preliminary validation

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REMOTE SENSING OF ENVIRONMENT 2022年 280卷

作者： Chen, Cheng Dubovik, Oleg Litvinov, Pavel Fuertes, David Lopatin, Anton Lapyonok, Tatyana Matar, Christian Karol, Yana Fischer, Juergen Preusker, Rene Hangler, Andreas Aspetsberger, Michael Bindreiter, Lukas Marth, Daniel Chimot, Julien Fougnie, Bertrand Marbach, Thierry Bojkov, Bojan GRASP SAS Villeneuve Dascq France Univ Lille CNRS UMR 8518 Lab Opt Atmospher F-59000 Lille France Free Univ Berlin Berlin Germany Cloudflight Austria GmbH High Performance Comp Linz Austria EUMETSAT Darmstadt Germany

The Ocean and Land Color Instrument (OLCI) onboard the Copernicus Sentinel-3A satellite is a medium-resolution and multi-spectral push-broom imager acquiring radiance in 21 spectral bands covering from the visible to the far near-infrared. These measurements are primary dedicated to land & ocean color applications, but actually include also reliable information for atmospheric aerosol and surface brightness characterization. In the framework of the EUMETSAT funded study to support the Copernicus Program, we describe the retrieval of aerosol and surface properties from OLCI single-viewing multi-spectral Top-Of-Atmosphere (TOA) radiances based on the Generalized Retrieval of Atmosphere and Surface Properties (grasp) algorithm. The high potential of the OLCI/grasp configuration stems from the attempt to retrieve both aerosol load and surface reflectance simultaneously using a globally consistent high-level approach. For example, both over land and ocean surfaces OLCI/grasp uses 9 spectral channels (albeit with different weights), strictly the same prescribed aerosol models and globally the same a priori constraints (though with some differences for observations over land and ocean). Due to the lack of angular multi-viewing information, the directional properties of underlying surface are strongly constrained in the retrieval: over ocean the Fresnel reflection together with foam/whitecap albedo are exclusively computed using a priori wind speed;over land, the Bidirectional Reflectance Distribution Function (BRDF) is slightly adjusted from a priori values of climatological Ross-Li volumetric and geometric terms. Meanwhile, the isotropic reflectance is retrieved globally under mild spectral smoothness constraints. It should be noticed that OLCI/grasp configuration employs innovative multi-pixel concept (Dubovik et al., 2011) that enhance retrieval by simultaneously inverting large group of pixels. The concept allows for benefiting from knowledge about natural variability

关键词： OLCI/Sentinel-3A Satellite remote sensing Aerosol and surface characterization grasp algorithm

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Characterization of Tajogaite volcanic plumes detected over the Iberian Peninsula from a set of satellite and ground-based remote sensing instrumentation

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REMOTE SENSING OF ENVIRONMENT 2023年第1期295卷

作者： Salgueiro, V. Guerrero-Rascado, J. L. Costa, M. J. Roman, R. Cazorla, A. Serrano, A. Molero, F. Sicard, M. Cordoba-Jabonero, C. Bortoli, D. Comeron, A. Couto, F. T. Lopez-Cayuelaj, M. A. Perez-Ramirez, D. Potes, M. Muniz-Rosado, J. A. Obregon, M. A. Barragan, R. Oliveira, D. C. F. S. Abril-Gago, J. Gonzalez, R. Gil-Diaz, C. Foyo-Moreno, I. Munoz-Porcar, C. Granados-Munoz, M. J. Rodriguez-Gomez, A. Herreras-Giralda, M. Bravo-Aranda, J. A. Carvajal-Perez, C. V. Barreto, A. Alados-Arboledas, L. Univ Evora Earth Remote Sensing Lab EaRSLab P-7000671 Evora Portugal Univ Evora Inst Earth Sci ICT P-7000671 Evora Portugal Univ Evora Inst Adv Studies & Res IIFA Dept Phys P-7000671 Evora Portugal Univ Evora Sch Sci & Tecnol ECT P-7000671 Evora Portugal Andalusian Inst Earth Syst Res Granada 18006 Spain Univ Granada Appl Phys Dept Granada 18071 Spain Univ Valladolid Grp Atmospher Opt GOA UVa Valladolid 47011 Spain Univ Extremadura Dept Fis Badajoz 06006 Spain Ctr Environm & Technol Energy Res CIEMAT Madrid 28040 Spain Univ Politecn Cataluna Dept Signal & Theory & Commun CommSensLab Barcelona 08034 Spain Univ Reunion Lab Atmosphere & Cyclones LACy F-97744 St Denis France Inst Nacl Tecn Aeroespacial Atmospher Res & Instrumentat Branch Madrid 28850 Spain Lille 1 Univ Lab Opt Atmos CNRS Villeneuve Dascq France GRASP SAS Villeneuve Dascq France Meteorol State Agcy Spain AEMET Izana Atmospher Res Ctr Izana Spain

Three volcanic plumes were detected during the Tajogaite volcano eruptive activity (Canary Islands, Spain, September-December 2021) over the Iberian Peninsula. The spatiotemporal evolution of these events is char-acterised by combining passive satellite remote sensing and ground-based lidar and sun-photometer systems. The inversion algorithm grasp is used with a suite of ground-based remote sensing instruments such as lidar/ ceilometer and sun-photometer from eight sites at different locations throughout the Iberian Peninsula. Satellite observations showed that the volcanic ash plumes remained nearby the Canary Islands covering a mean area of 120 & PLUSMN;202 km2 during the whole period of eruptive activity and that sulphur dioxide plumes reached the Iberian Peninsula. Remote sensing observations showed that the three events were mainly composed of sulphates, which were transported from the volcano into the free troposphere. The high backscatter-related & ANGS;ngstro & BULL;m exponents for wavelengths 532-1064 nm (1.17 & PLUSMN;0.20 to 1.40 & PLUSMN;0.24) and low particle depolarization ratios (0.08 & PLUSMN;0.02 to 0.09 & PLUSMN;0.02), measured by the multi-wavelength Raman lidar, hinted at the presence of spherical small particles. The layer aerosol optical depth at 532 nm (AODL532) obtained from lidar measurements contributed between 49% and 82% to the AERONET total column AOD at 532 nm in event II (11-13 October). According to the grasp retrievals, the layer aerosol optical depth at 440 nm (AODL440) was higher in all sites during event II with values between 0.097 (Badajoz) and 0.233 (Guadiana-UGR) and lower in event III (19-21 October) varying between 0.003 (Granada) and 0.026 (& PRIME;Evora). Compared with the grasp retrievals of total column AOD at 440 nm, the AODL440 had contributions between 21% and 52% during event II. In the event I (25-28 September), the mean volume concentrations (VC) varied between 5 & PLUSMN;4 & mu;m3cm  3 (El-Arenosillo/Huelva) and

关键词： Sulphur dioxide Volcanic sulphates grasp algorithm Lidar Ceilometer Sun-photometer Satellite remote sensing

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An Elastic Energy Management algorithm in a Hierarchical Control System with Distributed Control Devices

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ENERGIES 2022年第13期15卷 4750页

作者： Powroznik, Piotr Szczesniak, Pawel Turchan, Krzysztof Krysik, Milosz Koropiecki, Igor Piotrowski, Krzysztof Univ Zielona Gora Inst Metrol Elect & Comp Sci PL-65516 Zielona Gora Poland Univ Zielona Gora Inst Automat Control Elect & Elect Engn PL-65516 Zielona Gora Poland IHP Leibniz Inst High Performance Microelect D-15236 Frankfurt Oder Germany

In modern Electric Power Systems, emphasis is placed on the increasing share of electricity from renewable energy sources (PV, wind, hydro, etc.), at the expense of energy generated with the use of fossil fuels. This will lead to changes in energy supply. When there is excessive generation from RESs, there will be too much energy in the system, otherwise, there will be a shortage of energy. Therefore, smart devices should be introduced into the system, the operation of which can be initiated by the conditions of the power grid. This will allow the load profiles of the power grid to be changed and the electricity supply to be used more rationally. The article proposes an elastic energy management algorithm (EEM) in a hierarchical control system with distributed control devices for controlling domestic smart appliances (SA). In the simulation part, scenarios of the algorithm's operation were carried out for 1000 households with the use of the distribution of activities of individual SAs. In experimental studies, simplified results for three SA types and 100 devices for each type were presented. The obtained results confirm that, thanks to the use of SAs and the appropriate algorithm for their control, it is possible to change the load profile of the power grid. The efficacious operation of SAs will be possible thanks to the change of habits of electricity users, which is briefly described in the article.

关键词： renewable energy sources energy demand control smart appliances elastic energy management algorithm grasp algorithm IoT

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