Results 11 to 20 of about 745,960 (257)

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   +1 more source

Continuous location of dimensional structures [PDF]

open access: yesEuropean Journal of Operational Research, 2004
In classical location problems, we have to find one or several points for placing new facilities such that they optimize one or several possibly constrained objective functions. Usually the functions depend on the interactions among demand points and new facilities.
José Miguel Díaz-Báñez   +2 more
openaire   +4 more sources

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

Successive continuation for locating connecting orbits [PDF]

open access: yesNumerical Algorithms, 1997
A successive continuation method for locating connecting orbits in parametrized systems of autonomous ODEs is considered. A local convergence analysis is presented and several illustrative numerical examples are given.
Eusebius J. Doedel   +2 more
openaire   +3 more sources

Mathematical Models and Nonlinear Optimization in Continuous Maximum Coverage Location Problem

open access: yesComputation, 2022
This paper considers the maximum coverage location problem (MCLP) in a continuous formulation. It is assumed that the coverage domain and the family of geometric objects of arbitrary shape are specified.
Sergiy Yakovlev   +2 more
doaj   +1 more source

Continuous location privacy protection mechanism based on differential privacy

open access: yesTongxin xuebao, 2021
Aiming at the problem of users’ location privacy leakage caused by continuously using LBS, a road privacy level (RPL) algorithm was proposed based on road topological network, which divided the privacy level of the road sections around the sensitive ...
Hongtao LI   +3 more
doaj   +2 more sources

A Vehicle Trajectory Privacy Preservation Method Based on Caching and Dummy Locations in the Internet of Vehicles

open access: yesSensors, 2022
In the internet of vehicles (IoVs), vehicle users should provide location information continuously when they want to acquire continuous location-based services (LBS), which may disclose the vehicle trajectory privacy.
Qianyong Huang   +3 more
doaj   +1 more source

A geographical location prediction method based on continuous time series Markov model. [PDF]

open access: yesPLoS ONE, 2018
Trajectory data uploaded by mobile devices is growing quickly. It represents the movement of an individual or a device based on the longitude and latitude coordinates collected by GPS.
Yongping Du   +4 more
doaj   +1 more source

A Privacy-Preserving Continuous Location Monitoring System for Location-Based Services

open access: yesInternational Journal of Distributed Sensor Networks, 2015
To protect users’ private locations in location-based services, various location anonymization techniques have been proposed. The most commonly used technique is spatial cloaking, which organizes users’ exact locations into cloaked regions (CRs).
Doohee Song   +3 more
doaj   +1 more source

Using injection points in reformulation local search for solving continuous location problems [PDF]

open access: yesYugoslav Journal of Operations Research, 2017
Reformulation local search (RLS) has been recently proposed as a new approach for solving continuous location problems. The main idea, although not new, is to exploit the relation between the continuous model and its discrete counterpart.
Brimberg Jack   +3 more
doaj   +1 more source

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