A stakeholder oriented approach to the optimization of transports of people with disabilities

Tellez, Oscar; Daguet, Laurent; Lehuédé, Fabien; Monteiro, Thibaud; Montoya, Geovanny Osorio; Péton, Olivier; Vercraene, Samuel

doi:10.1080/16258312.2020.1768435

Cited by 7 publications

(8 citation statements)

References 13 publications

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“…The study [10] analyzes the management of humanitarian supply chains using the example of India in a normal market situation, not complicated by crises in supply chains during a pandemic. The authors emphasize the importance of information and communication technologies (ICT).…”

Section: Literature Reviewmentioning

confidence: 99%

“…These results also support the view that the role of government is critical to expanding the use of ICTs. As argued in [10], an effective, transparent workflow policy associated with the use of a knowledge management system will maximize the benefits of ICT and further improve the efficiency of supply chains.…”

Section: Literature Reviewmentioning

confidence: 99%

“…The volume of finished products that was produced in a working week is fed to the graph (9). The volume of the incoming flow of finished pro-ducts to the vertices with the consumer cannot exceed his volume of demand (10). Constraint (11) allows you to track the use of different graph arcs along which the finished product is transported.…”

Section: Mathematical Modelmentioning

confidence: 99%

“…For fixed values x km , v ilrm , z ijkw , , obtained in stage 1, we are to solve the optimization problem (10,22,23,28,29):…”

Section: Stagementioning

confidence: 99%

“…To find the optimal solution, we use gradient descent [27,28] and penalty functions [29][30][31]. Then problem (10,18,22,23,28,29) takes the form (18,22,23,(30)(31)(32)(33)(34)36) with the iteration rule: The stopping criterion will be considered the achievement of such a value of k so that the inequality Let us consider formulas (30)(31)(32)(33)(34)(35)) in more detail. Formula (30) -objective function with penalties Constraint (31) reflects the difference between the volume of products delivered to the customer and the value of the demand of the same customer.…”

Section: Stagementioning

confidence: 99%

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A mathematical model for the formation of the pricing policy and the plan of the production and transport system in a timber-processing enterprise

Rogulin¹

2021

Bus. Inform.

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The formation of supply chains for raw materials is closely related to production problems involving the determination of prices for sold goods. The question often arises about the need to study the sources of raw materials and the methodology for pricing the goods produced, taking into account a large number of external aspects of the market. Often, only particular approaches to solving production problems are considered in the literature, and methods for solving the complex problem of forming supply chains for raw materials and pricing are poorly developed. This paper presents a mathematical model that makes it possible to assess the feasibility of interaction between a timber industry enterprise and a commodity exchange, with the daily formation of a price vector over the entire planning horizon. A two-stage algorithm for finding a suboptimal solution is considered, which at the first stage is based on linear optimization, and at the second, on gradient descent with the use of penalty functions. The model was tested on the data of the commodity and raw materials exchange of Russia and one of the enterprises of the Primorsky Territory. The result of testing was the volume of production of each type of product over the entire planning horizon, the volume of delivery of raw materials from regions to enterprises, as well as the methods of delivery of goods to the consumer and the policy of pricing. It is shown that almost all goods should increase in price due to a reduction in the excess volume of applications (demand) over the entire planning horizon, with the exception of two types of products. It is noted that the exchange can provide the necessary volume of raw materials for high-capacity production, which demonstrates the possibility, if necessary, to increase the volume of raw materials purchases. It is shown which goods will be included in the release plan more often than others when optimizing the price vector. The ways of delivery of final types of products are analyzed. The disadvantages and advantages of the mathematical model and algorithm are presented.

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Section: Literature Reviewmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

Section: Mathematical Modelmentioning

confidence: 99%

“…For fixed values x km , v ilrm , z ijkw , , obtained in stage 1, we are to solve the optimization problem (10,22,23,28,29):…”

Section: Stagementioning

confidence: 99%

Section: Stagementioning

confidence: 99%

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A mathematical model for the formation of the pricing policy and the plan of the production and transport system in a timber-processing enterprise

Rogulin¹

2021

Bus. Inform.

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The assignment-dial-a-ride-problem

Timothée,

Samuel,

Thibaud

2023

Health Care Manag Sci

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HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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