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of 10
pro vyhledávání: '"Christos Zacharias"'
Publikováno v:
PLoS ONE, Vol 12, Iss 8, p e0184092 (2017)
During the last years the number of cities that have installed and started operating shared bike systems has significantly increased. These systems provide an alternative and sustainable mean of transportation to the city dwellers. Apart from the ene
Externí odkaz:
https://doaj.org/article/90945ddd5ff446a6867471d438c8120d
Publikováno v:
Operations Research.
Adaptive Patient Flow Management Appointment scheduling has significant clinical, operational, and economical impact on healthcare systems. An informed scheduling strategy that can effectively match patient demand and service capacity dynamically is
Autor:
Nikolaos Vagiokas, Christos Zacharias
Publikováno v:
OALib. :1-22
Transportation of Dangerous goods by road may have serious consequences in case of an accident occur. The consequences of a road accident of a heavy goods vehicle carrying dangerous goods may affect not only the truck driver but also the nearby popul
Autor:
Christos Zacharias, Mor Armony
Publikováno v:
Management Science. 63:3978-3997
Patients nationwide experience difficulties in accessing medical care in a timely manner due to long backlogs of appointments. Medical practices aim to utilize their valuable resources efficiently, deliver timely access to care, and at the same time
Autor:
Michael Pinedo, Christos Zacharias
Publikováno v:
Manufacturing & Service Operations Management. 19:639-656
We analyze a discrete multiserver model for scheduling customer arrivals under no-shows. The challenge is to assign customers to time slots so that the service system utilizes its resources efficiently and customers experience short waiting times. We
Publikováno v:
SSRN Electronic Journal.
The simultaneous consideration of appointment day (inter-day scheduling) and time of day (intra-day scheduling) in dynamic scheduling decisions is an important theoretical and practical problem that has remained open due to its stochastic nature, com
Publikováno v:
Journal of Systems Science and Systems Engineering. 24:1-48
Scheduling plays an important role in many different service industries. In this paper we provide an overview of some of the more important scheduling problems that appear in the various service industries. We focus on the formulations of such proble
Autor:
Christos Zacharias, Tallys Yunes
Publikováno v:
SSRN Electronic Journal.
We address the problem of designing appointment scheduling strategies in a stochastic environment accounting for patient no-shows, nonpunctuality, general stochastic service times, and unscheduled emergency walk-ins. A good appointment schedule seeks
Autor:
Michael Pinedo, Christos Zacharias
Publikováno v:
Production and Operations Management. 23:788-801
We study an overbooking model for scheduling arrivals at a medical facility under no-show behavior, with patients having different no-show probabilities and different weights. The scheduler has to assign the patients to time slots in such a way that
Autor:
Christos Zacharias, Michael Pinedo
Publikováno v:
SSRN Electronic Journal.