Results 1 to 10 of about 21,381 (82)

A row generation method for the inverse continuous facility location problems

open access: yesComputers and Industrial Engineering, 2022
In a single facility location problem, a set of points is given and the goal is finding the optimal location of new facility respect to given criteria such as minimizing time, cost and distances between the clients and facilities. On the other side, the inverse models try to modify the parameters of the problem with the minimum cost such that a given ...
Jafar Fathali
exaly   +3 more sources

Resource-Adaptive Semantic Transmission and Client Scheduling for OFDM-Based V2X Communications [PDF]

open access: yesSensors
Proportional, fair scheduling in OFDM-based vehicle-to-everything (V2X) uplink causes the resource-block allocation of each vehicle to vary from slot to slot, yet conventional semantic encoders produce a fixed number of output tokens regardless of the ...
Jiahao Liu   +3 more
doaj   +2 more sources

Inverse Balanced Facility Location Problem in the Plane [PDF]

open access: yesControl and Optimization in Applied Mathematics
Classical inverse location models aim to modify problem parameters such that pre-specified facility locations become optimal with respect to a given objective.
Sina Nemati   +2 more
doaj   +2 more sources

Inverse single facility location problem on a tree with balancing on the distance of server to clients

open access: yesJournal of Industrial and Management Optimization, 2022
<p style='text-indent:20px;'>We introduce a case of inverse single facility location problem on a tree where by minimum modifying in the length of edges, the difference of distances between the farthest and nearest clients to a given facility is minimized. Two cases are considered: bounded and unbounded nonnegative edge lengths.
Jafar Fathali
exaly   +4 more sources

Inverse and Reverse 2-facility Location Problems with Equality Measures on a Network

open access: yesIranian Journal of Mathematical Sciences and Informatics, 2023
Summary: In this paper we consider the inverse and reverse network facility location problems with considering the equity on servers. The inverse facility location with equality measure deals with modifying the weights of vertices with minimum cost, such that the difference between the maximum and minimum weights of clients allocated to the given ...
Fathali Jafar
exaly   +3 more sources

The inverse minisum circle location problem [PDF]

open access: yesYugoslav Journal of Operations Research, 2022
Let n weighted points be given in the plane. The inverse version of the minisum circle location problem deals with modifying the weights of points with minimum cost, such that the sum of the weighted distances from the circumference of a given circle C ...
Gholami Mehraneh, Fathali Jafar
doaj   +1 more source

Inverse minimax circle location problem with variable coordinates [PDF]

open access: yesAUT Journal of Mathematics and Computing, 2022
Traditionally, the minimax circle location problems concern finding a circle $C$ in the plane such that the maximum distance from the given points to the circumference of the circle is minimized. The radius of the circle can be fixed or variable. In this
Mehraneh Gholami, Jafar Fathali
doaj   +1 more source

Localization Approach for Underwater Sensors in the Magnetic Silencing Facility Based on Magnetic Field Gradients

open access: yesSensors, 2022
Localization of the underwater magnetic sensor arrays plays a pivotal role in the magnetic silencing facility. A localization approach is proposed for underwater sensors based on the optimization of magnetic field gradients in the inverse problem of ...
Guohua Zhou   +3 more
doaj   +1 more source

Inverse of Backup 2-Median Problems with Variable Edge Lengths and Vertex Weight on Trees and Variable Coordinates on the Plane [PDF]

open access: yesمدیریت تولید و عملیات, 2018
In this paper we consider the inverse of backup 2-median problem. In this problem, a set of weighted points are given and we should change some parameters of the problem such as weights of vertices and edges and coordinates of points such that the two ...
Morteza Nazari   +3 more
doaj   +1 more source

Comparison of forward and backward Lagrangian transport modelling to determine methane emissions from anaerobic digestion facilities

open access: yesAtmospheric Environment: X, 2021
In biogas plants, where biological treatment of organic matter by anaerobic digestion (AD) is performed, as well as in plants for upgrading of biogas to biomethane, there might be emissions to air from different parts of the plants.
Marlies Hrad   +5 more
doaj   +1 more source

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