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A new local search for continuous location problems [PDF]

open access: yesEuropean Journal of Operational Research, 2014
This paper presents a new local search approach for solving continuous location problems. The main idea is to exploit the relation between the continuous model and its discrete counterpart. A local search is first conducted in the continuous space until a local optimum is reached. It then switches to a discrete space that represents a discretisation of
Jack Brimberg   +2 more
exaly   +6 more sources

Cache-Based Privacy Protection Scheme for Continuous Location Query [PDF]

open access: yesEntropy, 2023
Users who initiate continuous location queries are prone to trajectory information leakage, and the obtained query information is not effectively utilized.
Zhenpeng Liu   +4 more
doaj   +2 more sources

Globally Optimal Facility Locations for Continuous-Space Facility Location Problems

open access: yesApplied Sciences, 2021
The continuous-space single- and multi-facility location problem has attracted much attention in previous studies. This study focuses on determining the globally optimal facility locations for two- and higher-dimensional continuous-space facility ...
Xuehong Gao   +5 more
doaj   +2 more sources

A Location Method Using Sensor Arrays for Continuous Gas Leakage in Integrally Stiffened Plates Based on the Acoustic Characteristics of the Stiffener

open access: yesSensors, 2015
This paper proposes a continuous leakage location method based on the ultrasonic array sensor, which is specific to continuous gas leakage in a pressure container with an integral stiffener.
Xu Bian   +5 more
doaj   +3 more sources

A New Method of Using Sensor Arrays for Gas Leakage Location Based on Correlation of the Time-Space Domain of Continuous Ultrasound

open access: yesSensors, 2015
This paper proposes a time-space domain correlation-based method for gas leakage detection and location. It acquires the propagated signal on the skin of the plate by using a piezoelectric acoustic emission (AE) sensor array.
Xu Bian   +4 more
doaj   +3 more sources

Improved starting solutions for the planar p-median problem [PDF]

open access: yesYugoslav Journal of Operations Research, 2021
In this paper we present two new approaches for finding good starting solutions to the planar p-median problem. Both methods rely on a discrete approximation of the continuous model that restricts the facility locations to the given set of demand points.
Brimberg Jack, Drezner Zvi
doaj   +1 more source

Continuous Facility Location on Graphs [PDF]

open access: yesMathematical Programming, 2020
AbstractWe study a continuous facility location problem on undirected graphs where all edges have unit length and where the facilities may be positioned on the vertices as well as on interior points of the edges. The goal is to cover the entire graph with a minimum number of facilities with covering range $$\delta >0$$
Hartmann, Tim A.   +2 more
openaire   +4 more sources

An Analytical Approach for Facility Location for Truck Platooning—A Case Study of an Unmanned Following Truck Platooning System in Japan

open access: yesLogistics, 2021
Truck platooning involves a small convoy of freight vehicles using electronic coupling as an application in automated driving technology, and it is expected to represent a major solution for improving efficiency in truck transportation in the near future.
Daisuke Watanabe   +2 more
doaj   +1 more source

Single Facility Goal Location Problems with Symmetric and Asymmetric Penalty Functions [PDF]

open access: yesControl and Optimization in Applied Mathematics, 2019
Location theory is an interstice field of optimization and operations research. In the classic location models, the goal is finding the location of one or more facilities such that some criteria such as transportation cost, the sum of distances passed by
Aria Soleimani Koorandeh   +3 more
doaj   +1 more source

A novel 1D-ACAR measurement method based on continuous crystal array detector

open access: yesHe jishu, 2021
BackgroundAngular correlation of annihilation radiation (ACAR) is a high-precision (sub-milliradian level) method for studying Fermi momentum and Fermi energy in metals.
LIU Jinyang   +7 more
doaj   +1 more source

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