Parcourir par auteur "Saharidis, G. K. D."
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Advances in truck scheduling at a cross dock facility
Golias, M. M.; Saharidis, G. K. D.; Ivey, S.; Haralambides, H. E. (2013)In this paper the authors deal with the scheduling of inbound and outbound trucks to the available inbound and outbound doors at a cross dock facility. They assume that all trucks served at the facility need to meet several ... -
The berth allocation problem with stochastic vessel handling times
Karafa, J.; Golias, M. M.; Ivey, S.; Saharidis, G. K. D.; Leonardos, N. (2013)In this paper, the berth allocation problem with stochastic vessel handling times is formulated as a bi-objective problem. To solve the resulting problem, an evolutionary algorithm-based heuristic and a simulation-based ... -
Exact solution methodologies for linear and (mixed) integer bilevel programming
Saharidis, G. K. D.; Conejo, A. J.; Kozanidis, G. (2013)Bilevel programming is a special branch of mathematical programming that deals with optimization problemswhich involve two decisionmakers who make their decisions hierarchically. The problem's decision variables are ... -
An improved Benders decomposition algorithm for the logistics facility location problem with capacity expansions
Tang, L.; Jiang, W.; Saharidis, G. K. D. (2013)We investigate a logistics facility location problem to determine whether the existing facilities remain open or not, what the expansion size of the open facilities should be and which potential facilities should be selected. ... -
Minimizing waiting times at transitional nodes for public bus transportation in Greece
Saharidis, G. K. D.; Dimitropoulos, C.; Skordilis, E. (2014)Scheduling of transit networks is one of the most addressed problems in the mathematical optimization science, due to the increase of public transportation in the last decade. Researchers have introduced various formulations ... -
Modeling and solution approach for the environmental traveling salesman problem
Saharidis, G. K. D.; Kolomvos, G.; Liberopoulos, G. (2014)We consider the environmental traveling salesman problem in a connected graph driven by a cost function describing the impact of environmental externalities over the routes. The resulting problem is the asymmetric non-Euclidean ... -
A multi-periodic optimization modeling approach for the establishment of a bike sharing network: A case study of the City of Athens
Saharidis, G. K. D.; Fragkogios, A.; Zygouri, E. (2014)This study introduces a novel mathematical formulation that addresses the strategic design of a bicycle sharing network. The developed pure integer linear program takes into consideration data such as the potential future ... -
A new model to mitigating random disruption risks of facility and transportation in supply chain network design
Azad, N.; Davoudpour, H.; Saharidis, G. K. D.; Shiripour, M. (2014)In this article, we study the design problem of a reliable stochastic supply chain network in the presence of random disruptions in the location of distribution centers (DCs) and the transportation modes. It is assumed ... -
Speed-up Benders decomposition using maximum density cut (MDC) generation
Saharidis, G. K. D.; Ierapetritou, M. G. (2013)The classical implementation of Benders decomposition in some cases results in low density Benders cuts. Covering Cut Bundle (CCB) generation addresses this issue with a novel way generating a bundle of cuts which could ... -
Strategies for protecting supply chain networks against facility and transportation disruptions: an improved Benders decomposition approach
Azad, N.; Saharidis, G. K. D.; Davoudpour, H.; Malekly, H.; Yektamaram, S. A. (2013)Disruptions rarely occur in supply chains, but their negative financial and technical impacts make the recovery process very slow. In this paper, we propose a capacitated supply chain network design (SCND) model under ... -
Untitled
Saharidis, G. K. D.; Ierapetritou, M.; Floudas, C. A. (2013)